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Motion and Forces
Page 3
Questions (1,354)
To a motor cyclist traveling due North at 50km/h the wind appears to come from Northwest at 60km/h. What is the true velocity of
2 answers
asked anonymously
35 views
A Ferris wheel rotates 4 times each minute and has a diameter of 17 m.
The acceleration of gravity is 9.8 m/s2. What is the
4 answers
asked by
Ashley
1,056 views
The experiment done in lab is repeated, using a ball that has unknown mass m. You plot your data in the form of f 2 versus M/L,
4 answers
asked by
sunny
2,008 views
When the front of a 5.0 m long bus traveling at a constant speed of 20 m/s is 55 m away from an intersection, the traffic light
4 answers
asked by
Nica
2,610 views
How can u determine that a falling object has reached terminal velocity from a velocity time graph of its motion?
u can determine
5 answers
asked by
Teya
1,824 views
An electron is released from rest at a distance of 9 cm from a proton. How fast will the electron be moving when it is 3 cm from
4 answers
asked by
Lorena
3,813 views
A hawk is flying horizontally at 10 m/s in a straight line 200m above the ground. A mouse it was carrying is released from its
4 answers
asked by
Shannon
7,597 views
The base of a ramp sits on the ground (see the figure below). Its slope is 0.3, and it extends to the top of the front steps of
4 answers
asked by
manver
1,778 views
The mass of a golf ball is 45.9g. If it leaves the tee with a speed of 72.0 m/s, what is its corresponding wavelength?
Express
7 answers
asked by
K
13,663 views
You are driving down the highway late one night at 20 m/s when a deer steps onto the road 35 m in front of you. Your reaction
5 answers
asked by
Harvey
10,744 views
A train is traveling up a 5.2° incline at a speed of 3.09 m/s when the last car breaks free and begins to coast without
5 answers
asked by
jawn
2,709 views
A driver of a car going 90.0km/h suddenly sees the lights of a barrier 40.0 metres ahead. It takes the driver 0.75 seconds
4 answers
asked by
Steph
14,727 views
A water balloon is thrown straight down at 10.0 m/s from a second floor window, 5.00 m above ground level.
1) How fast is the
5 answers
asked by
Elijah
3,856 views
A car of mass 500kg travelling at 36km/hr brought to rest over a distance of 20m calculate 1.The average retardation 2.The
5 answers
asked by
Emmanuel
3,194 views
A constant force is exerted for a short time interval on a cart that is initially at rest on an air track. This force gives the
5 answers
asked by
Kim
7,970 views
Determine the stopping distances for an automobile with an initial speed of 95km/h and human reaction time of 1.0s:
(a) for an
4 answers
asked by
Emily
10,306 views
In tests on earth a lunar surface exploration vehicle (mass = 5.90 103 kg) achieves a forward acceleration of 0.215 m/s2. To
4 answers
asked by
Anonymous
3,287 views
Dana loads luggage into an airplane using a conveyor belt tilted at an angle of 20°.She places a few pieces of luggage on the
5 answers
asked by
CodyJinks
3,900 views
The block shown in (Figure 1) has mass m = 7.0 kg and lies on a fixed smooth frictionless plane tilted at an angle θ = 22.0 ∘
4 answers
asked by
Simone
7,129 views
A physics book of unknown mass is dropped 5.00 m. What speed does the book have just before it hits the ground? Assume that air
4 answers
asked by
Anonymous
2,805 views
A coconut thrown horizontally at 20 m/s from the top of a hill 63 m high. How far from the base of the hill does the coconut hit
5 answers
asked by
harry
1,604 views
A car travelling with constant acceleration increases its speed from 10 m/s to 50 m/s over a distance of 60 m . how long does
4 answers
asked by
Shahab Mirza
2,495 views
A spelunker (cave explorer) drops a stone from rest into a hole. The speed of sound is 343 m/s in air, and the sound of the
4 answers
asked by
shaknocka
5,676 views
Students are using the experimental setup shown in the image in which the two ends of a string are attached to a car and to a
5 answers
asked by
Anonymous
4,355 views
You are on an airplane traveling 30° south of due west at 130 m/s with respect to the air. The air is moving with a speed 30
4 answers
asked by
Cam
3,277 views
The coefficient of kinetic friction for a 22 kg bobsled on a track is 0.20. What force is required to push it down a 6.0°
4 answers
asked by
gen
7,445 views
A 2.0kg wood block is launched up a wooden ramp that is inclined at a 26 angle. The block's initial speed is 8.0 m/s. The
6 answers
asked by
senko
6,928 views
You toss a tennis ball straight upward. At the moment it leaves your hand it is at a height of 1.5 m above the ground, and it is
4 answers
asked by
John
12,390 views
A helicopter is flying horizontally at a constant 40 m/s when it drops a package below. Where does it land?
1. About 50 m ahead
4 answers
asked by
Anonymous
3,856 views
A small washer is taped to a golf ball and the ball is hung from an electromagnet. When a trigger is activated the electromagnet
6 answers
asked by
Tim
2,765 views
A car is traveling 27 m/s when the driver sees a child standing in the road. He takes 0.8 s to react, then steps on the brakes
4 answers
asked by
Katelyn
5,938 views
A 3.00-kg block starts from rest at the top of a 25.5° incline and slides 2.00 m down the incline in 1.75 s.
(a) Find the
4 answers
asked by
Anonymous
10,475 views
0.10- baseball moves toward home plate with a velocity = (-31 ).
After striking the bat, the ball moves vertically upward with a
5 answers
asked by
john
1,640 views
A mass m is traveling at an initial speed of v0 = 25.0 m/s. It is brought to rest in a distance of 62.5 m by a force of 15.0 N.
5 answers
asked by
Femfatal
5,105 views
A 0.19 kg hockey puck has a velocity of 2.1 m/s toward the east (the +x direction) as it slides over the frictionless surface of
4 answers
asked by
john
1,797 views
A skier traveling at 26.2 m/s encounters a 23 degree slope.
(a)If you could ignore friction, to the nearest meter, how far up the
4 answers
asked by
clache
3,887 views
• If you use a cart with half the mass, you reach _______final speed.
• If you use half the force, you reach ______ final
3 answers
asked by
Ted
1,588 views
Salem throws a ball at an initial velocity of 18m/s at an angle of 53^o to the ground.
A, workout velocity in component vector B,
5 answers
asked by
Selam Getachew
988 views
A robot probe drops a camera off of the rim of a 239 m high cliff on Mars, where the free-fall acceleration is -3.7 m/s^2.
A.
4 answers
asked by
Maggie
1,709 views
A rock is released from rest on a 700 m building and time is 11.95 what is the speed and velocity of the ball just before it
6 answers
asked by
Anonymus
1,745 views
A plane flying horizontally at a speed of 50m/s and at an elevation of 160m drops a package. two seconds later it drops a second
4 answers
asked by
Tammy
4,885 views
Bruce stands on a bank beside a pond, grasps the end of a 20.0-m-long rope attatched to a nearby tree and swings out to drop
5 answers
asked by
Work needed!
1,731 views
A car traveling 75 km/jam slows down at a constant 0,50 m/s2
just by “letting up on the gas.” Calculate (a) the distance the
4 answers
asked by
Melly
1,946 views
The occupants of a car traveling at a speed of 30 m/s note that on a particular part of a road their apparent weight is 15%
5 answers
asked by
Jorge
2,859 views
During takeoff, an airplane, climbs with a speed of 180 m/s at an angle of 34º above the horizontal. The sun is shining
4 answers
asked by
paul
3,833 views
A daredevil decides to jump a canyon of width 10 m. To do so, he drives a motorcycle up an incline sloped at an angle of 15
4 answers
asked by
Susan
8,087 views
EXERCISE 4.9 (a) Suppose a hockey puck slides down a frictionless ramp with an acceleration of 5.00 m/s2. What angle
does the
4 answers
asked by
hisham
4,519 views
Identical twins, each with mass 59.6 kg, are on ice skates and at rest on a frozen lake, which may be taken as frictionless.
4 answers
asked by
heather
1,566 views
A satellite is in a circular orbit around an unknown planet. The satellite has a speed of 1.70 104 m/s, and the radius of the
4 answers
asked by
Justin
3,073 views
When you see a traffic light turn red, you apply the brakes until you come to a stop. Suppose your initial speed was 12.9 m/s,
4 answers
asked by
Chad
4,068 views
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Parent Categories (18)
Classical mechanics
Dynamics
Engineering/Physics-Mechanics
Forces
Kinematics
Mechanics
Mechanics or Kinematics
Newton's Laws of Motion
Newtonian Mechanics
Physical Science
Physical Sciences
Physics
Physics and Mechanics
Physics and Sports
Science and Physics
Science/Earth Science
Science/Physics
Tennis