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Dynamics
Page 3
Questions (1,163)
Two concurrent forces have a maximum resultant of 45 newtons and a minimum of 5.0 newtons. What is the magnitude of each of
7 answers
asked by
Stephanie
9,104 views
A massive steel cable drags a 20kg block across a horizontal, frictionless surface. A 100N force applied to the cable causes the
5 answers
asked by
Eric
9,105 views
A block of mass 0.78kg starts from rest at point A and slides down a frictionless hill of height h. At the bottom of the hill it
4 answers
asked by
shyne1
3,319 views
A toboggan approaches a snowy hill moving at 11.1 m/s . The coefficients of static and kinetic friction between the snow and the
4 answers
asked by
Samantha
4,659 views
A small block of mass m = 1.3 kg slides, without friction, along the loop-the-loop track shown. The block starts from the point
4 answers
asked by
Daniel
4,037 views
This question is typical on some driver’s license exams: A car moving at 40 km/h skids
14 m with locked brakes. How far will
5 answers
asked by
Tex
4,210 views
A 15 kg block is on a ramp which is inclined at 20 degrees above the horizontal. It's connected by a string to a 19kg mass which
5 answers
asked by
Ann
8,697 views
A box of textbooks of mass 25.0 kg rests on a loading ramp that makes an angle α with the horizontal. The coefficient of
4 answers
asked by
A
3,102 views
A 150 kg body is at rest and covers the constant force needed to impart a velocity of 8m/s to it in 5s.
6 answers
asked by
Wilsmister
2,055 views
Two ice skaters have masses m1 and m2 and are initially stationary. Their skates are identical. They push against one another,
4 answers
asked by
Natasha
1,207 views
A 0.250 kg block on a vertical spring with a spring constant of 5.00 103 N/m is pushed downward, compressing the spring 0.120 m.
5 answers
asked by
Anonymous
7,782 views
A meteor P is tracked by a radar observatory on the earth at O. When the meteor is directly overhead (theta = 90), the following
4 answers
asked by
Jessi
2,078 views
An electric train moving at 20kmh accelerates to a speed of 30kmh in 20 seconds.find the distance travelled in metres during the
5 answers
asked by
Awwal
1,796 views
A 75.0kg bobsled is pushed along a horizontal surface by two athletes. After the bobsled is pushed a distance of 4.5m starting
7 answers
asked by
christian
11,238 views
The two angled ropes used to support the crate in the figure below an withstand a maximum tension of 1300 N before they break.
7 answers
asked by
andrea
8,816 views
Determine the weight of a 4989.0-kg car which is moving at a speed of 32
m/s.
4 answers
asked by
john
641 views
A child pulls on a wagon handle at an angle 37° above the horizontal with a force of 45 N. If the wagon accelerates at 8.1 m/s2
5 answers
asked by
anonymous
2,854 views
a tractor of mass 5.0×10^3kg is used to tow a car of mass 2.5×10^3kg. The tractor moved with a speed of 3.0m/s just before the
6 answers
asked by
utulu Daniel
3,791 views
1. The figure shows a 100-kg block being released from rest from a height of 1.0 m. It then takes 0.53 s for it to reach the
3 answers
asked by
Shelby
4,576 views
The coefficients of static and kinetic friction between a 476 N crate and the ware house floor are 0.615 abd 0.420, repectively.
5 answers
asked by
Sarah
1,777 views
A cord passes over a weightless and frictionless pulley. Masses of 200 g and 300 g are attached to the ends of the cord. Find
5 answers
asked by
Sean
2,696 views
A block of mass m1=3.70kg on a frictionless plane inclined at angle 30 deg is connected by a cord over a massless, frictionless
4 answers
asked by
Maryam
15,146 views
A spider hangs from a strand of silk whose radius is 4.40 10-6 m. The density of the silk is 1300 kg/m3. When the spider moves,
4 answers
asked by
Marco
2,923 views
A 4 kg block, initially moving due east at 3 m/s, is acted upon by an impulse having magnitude 8 Ns and direction due west. The
4 answers
asked by
mssailormouth
1,520 views
A descending elevator of mass 670 kg is uniformly decelerated to rest over a distance of6 m by a cable in which the tension is
6 answers
asked by
christine
2,446 views
a 2000 kg car rounds a circular turn of radius 20.0 meters. if the road is flat and the coefficient of static friction between
5 answers
asked by
mallory!!!!!!!!!!!!
9,790 views
Tarzan plans to cross a gorge by swinging in an arc from a hanging vine. If his arms are capable of exerting a force of 1170 N
4 answers
asked by
kassy
7,031 views
A 0.5 kg soccer ball is kicked with a force of 50 Newtons for 0.2 sec. The ball was at rest before the kick. What is the speed
5 answers
asked by
karen
4,945 views
A massless string is wrapped around a cylinder of mass 0.400 kg and radius 0.100 m. The string is attached to the ceiling. The
5 answers
asked by
Chris
1,051 views
Zach, whose mass is 67 kg, is in an elevator descending at 12 m/s. The elevator takes 3.5 s to brake to a stop at the first
4 answers
asked by
kate
4,615 views
A 4 kg object is suspended by a string from the ceiling of an elevator.
The acceleration of gravity is 9.8 m/s2 . Determine the
4 answers
asked by
dale
3,085 views
The brakes of an automobile are suddenly applied at the instant when its velocity is 20 m/s. If the automobile comes to a stop
4 answers
asked by
Harry
2,015 views
A package is thrown down a curved ramp as shown in the figure. The package moves from A to B through a quarter-circle with
3 answers
asked by
Anonymous
519 views
A 700 KG horse is pulling a sled at a velocity of 3.5 m/s. If the horse's power output is 746 watts, the force exerted on the
4 answers
asked by
Monika
2,864 views
a 2.00kg object A is connected with a massless string across a massless, frictionless pulley to a 3.00kg object B. the smaller
3 answers
asked by
EMMA
1,308 views
You are riding on a Jet Ski at an angle of 35¢ª upstream on a river flowing with a speed of 2.8 m/s. If your velocity relative
4 answers
asked by
Clarita
3,925 views
A 225-kg crate is pushed horizontally with a force of 690 N. If the coefficient of friction is 0.20, calculate the acceleration
4 answers
asked by
Danny
3,227 views
A hot-air balloon of mass 200 kg is descending vertically with downward acceleration of magnitude 1.2 m/s2. How much mass
4 answers
asked by
karim
3,680 views
A boy throws a 4-kg pumpkin at 8m/s to a 40kg girl on roller skates, who catches it. At what speed does the girl then move
4 answers
asked by
Aly
2,647 views
What force is required to accelerate an object having a mass of 3 kg at 5 m/s2?
4 answers
asked by
Erica
2,826 views
A circular automobile racetrack is banked at an angle theta such that no friction between road and tires is required when a car
4 answers
asked by
J
1,263 views
A 33.3- kg block (m1) is on a horizontal surface, connected to a 5.1-kg block (m2) by a massless string. The pulley is massless
3 answers
asked by
Ted
536 views
a space shuttle astronaut has a mass of 110 kg with her spacesuit on. She is on a spacewalk and picks up a full can of spray
4 answers
asked by
Hannah
921 views
Two blocks are stacked one on top of the other. The coefficient of friction between the two blocks is 0.20, and the coefficient
4 answers
asked by
Capreeca
1,574 views
A ball of mass 400g is thrown with an initial velocity of 30.0 ms-1 at an angle of 45.0 degrees to the horizontal.air resistance
4 answers
asked by
chancy
1,640 views
A 12000 kg airplane launched by a catapult from an aircraft carrier is accelerated from 0 to 200 km/h in 3 s. (a) How many times
4 answers
asked by
Jan
1,876 views
A 67-kg man standing on a scale in an elevator notes that as the elevator rises, the scale reads 840 N. What is the acceleration
4 answers
asked by
Anonymous
1,771 views
Two boxes are seen to accelerate at the same rate when a force F is applied to the first and 5 F is applied the second.
What is
4 answers
asked by
jane
2,063 views
A 22.6-N horizontal force is applied to a 0.0710-kg hockey puck to accelerate it across the ice from an initial rest position.
4 answers
asked by
aaleeza
653 views
Maddie is standing still when her dancing partner, Paul, begins to lift her up and throw her into the air. Maddie’s mass is 40
4 answers
asked by
Kenzie
3,055 views
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