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Motion and Forces
Page 7
Questions (1,354)
A body of mass m falling from rest is subjected to the force of gravity and an air resistance proportional to the square of the
3 answers
asked by
Bhaskar
1,536 views
An elevator and its load have a total mass of 800kg .find the tension T in the supporting cable when the elevator originally
5 answers
asked by
Abidemi
3,882 views
A soccer ball is kicked from the ground with initial speed 17 m/s at angle 20 0
find a) The horizontal distance that the ball
3 answers
asked by
adim
549 views
When the Sun is directly overhead, a hawk dives toward the ground at a speed of 4.26 m/s.
If the direction of his motion is at an
3 answers
asked by
Lal
664 views
A ball is dropped from a height of 80ft.The elasticity of this ball is such that it rebounds three-fourths of the distance it
3 answers
asked by
Lynn
2,196 views
As part of a kinetic sculpture, a 5.6 kg hoop with a radius of 3.8 m rolls without slipping.
If the hoop is given an angular
3 answers
asked by
morg
2,556 views
During a launch of the shuttle, fuel is being burned at a rate of 2000 kg every second. the exhaust from the burning of this
3 answers
asked by
Jim
591 views
Two rockets are flying in the same direction and are side by side at the instant their retrorockets fire. Rocket A has an
3 answers
asked by
Anonymous
1,249 views
A car is traveling at 11.0 m/s, and the driver sees a traffic light turn red. After .59 s (the reaction time), the driver
3 answers
asked by
Sue
2,418 views
A superball is dropped from rest from a height of 2.0m. It bounces repeatedly from the floor, as superballs are prone to do.
3 answers
asked by
Cheylynne
1,182 views
Some sliding rocks approach the base of a hill with a speed of 18.0 . The hill rises at 41.0 above the horizontal and has
3 answers
asked by
Anonymous
791 views
If you have swam one lap in a swimming pool, that means you have swam from one end to the other and back. In 2.5 h, a swimmer
3 answers
asked by
gin
3,266 views
A basketball is dropped from a height and it rebounds. Each time the basketball rebounds to a height of 200 cenitmeters. What
3 answers
asked by
Sydney
542 views
A block starts at rest and slides down a fric- tionless track. It leaves the track horizontally, flies through the air, and
3 answers
asked by
Olivia
1,703 views
After a jump, a skydiver reaches terminal speed in 10 seconds. Does he gain more speed during the first second of fall or the
3 answers
asked by
Rich
560 views
A diver of mass 43.2 kg jumps off a high dive 10.0 m tall. If he comes to a stop 2.0 m below the surface of the water, what was
3 answers
asked by
Kalyn
534 views
A sailboat is traveling east at 8.0 m/s. A sudden gust of wind gives the boat an acceleration a = (1.30 m/s2 35° north of
3 answers
asked by
Me
640 views
A 500g block is released from rest and slides down a frictionless track that begins 2m above the horizontal. At the bottom of
4 answers
asked by
AJ
2,006 views
how would you make a graph testing a ping pong ball and a tennis ball going down an incline and timing it
3 answers
asked by
Kelli Kenyon
370 views
What would be the appearance of the speed-time curve if the fallng body where so light that the effect of air friction could not
3 answers
asked by
Sean
969 views
The diameter of a car's tire is 52 cm. While the car is being driven, the tire picks up a nail. How high above the ground will
5 answers
asked by
Allison
1,150 views
three parachutist have reached terminal velocity at the same distance above the ground below. One at 50kg anoher at 40 kg an
3 answers
asked by
ayssa
1,186 views
Because of the wind, a boat sails 4,728 meters in the direction S 47deg29mins W. How far south it goes? How far west has it
4 answers
asked by
trigofunctions
696 views
An astronaut exploring a distant solar system lands on an unnamed planet with a radius of 2520 km. When the astronaut jumps
4 answers
asked by
janie
1,621 views
An apparatus of the figure below is designed to study insects at an acceleration of magnitude 940 m/s2 (= 96g). The apparatus
4 answers
asked by
Max
1,094 views
The mass of a car is 2400 kg. the constant power supplied by the engine is 60 kW and the car starts from rest. What is the speed
4 answers
asked by
Leah
1,236 views
TRACY SWIMS ACROSS A STREAM OF WIDTH 40.0M IN 33.0S WHEN THERE IS NO CURRENT.SHE TAKES 59.0 TO COVER THE SAME DISTANCE WHEN
4 answers
asked by
ERIC
1,375 views
What is the velocity of an object dropped from a height of 350 m when it hits the ground?
3 answers
asked by
ali
769 views
A rock is dropped from a sea cliff and the sound of it striking the ocean is heard 3.7 s later. If the speed of sound is 340
4 answers
asked by
Waqar Siddiqui
1,694 views
Two crates are dropped from the same height in a vacuum. The mass and force of the crates are shown in the diagram. Which of the
3 answers
asked by
FF
332 views
A tennis ball is dropped from 1.12 m above the ground. It rebounds to a height of 0.822 m. With what velocity does it hit the
1 answer
asked by
Anonymous
119 views
a ball rolls down the roof that makes an angle of 30 degrees to the horizontal off the edge with a speed of 5m/s the distance to
1 answer
asked by
Anonymous
237 views
A skier of mass 60 kg skies down a 35° slope; the coefficient of friction between her skis and the snow is 0.40
(a) Calculate
4 answers
asked by
Link
368 views
A straight river flows east at a speed of 5 km/h. A motorboat has a speed of 20 km/h relative to the river. A boater wants to
3 answers
asked by
Anonymous
653 views
. A 1200 kg car is moving at 95 km/h when the driver notices a deer down the road. He immediately moves his
foot toward the brake
3 answers
asked by
James
388 views
A ball is dropped from a height of 36 m. The ball bounces back 70 % of the distance it falls. To what height does the ball
4 answers
asked by
math help plz
327 views
A skydiver wants to jump out of a plane and be in free fall while she sketches some motion graphs for a Gr. 11 physics problem.
1 answer
asked by
Anonymous
272 views
lisa walks 10m north, 3m west, 5m north, 12m east and then stops to catch her breath .find her displacement and distance from
3 answers
asked by
alikam
731 views
Janet jumps horizontally off a high diving platform with a velocity of 2.97m/s and lands in the water 1 s later.
How high is the
1 answer
asked by
Arath
445 views
A ferry is crossing a river. The ferry is headed
due north with a speed of 2.3 m/s relative to the water and the river’s
2 answers
asked by
Joe Neff
619 views
A: A boy runs 7.2 blocks North, 12.2 blocks Northeast, and 12.3 blocks West.
Determine the length of the displacement vector that
3 answers
asked by
Sandy
391 views
1. A 3kg box is released from the top of a 20° inclined plane. If the length of the inclined plane is 10m long, and a
3 answers
asked by
Elizabeth
637 views
Suppose that an object is dropped from a height of h meters and hits the ground with a velocity of v meters per second. Then
3 answers
asked by
valza berisha
939 views
A 65kg gymnast jumps on the trampoline. At the lowest point of her motion, the trampoline is depressed .50m below equilibrium.
4 answers
asked by
Anonymous
2,458 views
Sinking Object. A stone has a mass of 1.0kg and density 5000kg/m³ is dropped in water. It crossed the surface of the water with
2 answers
asked by
Anonymous
962 views
A student states that the velocity of a train is 95 kilometers/hour. What is wrong with that statement?
The units should be in
5 answers
asked by
SwimmerGirl
1,352 views
A ball is dropped on to the floor from a height of 20m it rebounds to height of 10m if the ball is in contact with floor for 0.1
2 answers
asked by
Sanmesh
695 views
A physics professor is going ice skating for the first time. She has gotten herself into the middle of an ice rink and cannot
3 answers
asked by
Davii
1,345 views
A child is flying a kite. If the kite is 135 feet above the child's hand level and the wind is blowing it on a horizontal course
3 answers
asked by
Jamie
545 views
A ship is heading north at 15km/h in a tide moving at 6km/h westward. Determine the magnitude and direction of the resultant
3 answers
asked by
Anon
389 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