Name the machine which is used to multiply force?

explain how conservation of mechanical energy takes place in long jump.

A crate of mass 10 kg starts from rest at the top of a 7 - m-long ramp inclined at 45 deg. The ramp is frictionless; find the object's speed at the bottom of the ramp

A car and a truck are each moving with the same kinetic energy. Assume that the truck has more mass than the car. Which has the greater speed? (b) A car and a truck are each moving with the same speed. Which has the greater kinetic energy?

WOUld it why a buffald Sammy uses a pulley to hoist a crate 10 meters high in 5 seconds. Sammy 6 pc applies 980 N of force to hoist the crate. Calculate the amount of power Sammy expended. O 500 Watts O 1960 Watts O 5000 Watts O 98 Watts falling out of a tree 20 meters

If a moving car applies it's brakes, friction will act on the tires of the car. Does friction do work on the car?

Which forces are doing work on the object? Which forces are not doing work on the object? F₂ F₁- F3 4 kg F4 -F5

What is the power done by gravity to make a ball of mass 0.68 kg roll from 1.3 m above the ground to the bottom along a curved path if it takes 2.68s to do so?

]] The figure below represents: Ankle v D HARTAME M *********** Knee v hoit LE the work-energy theorem figure questions/6915149 Ankle h O muscle forces applied to the leg during running O a free-body diagram of the leg while a person is rising from a seated position O the impulse-momentum analysis applied to a runner's leg #1 Knee h Leg mg hp

If you are driving home from school and have to slam on the brakes to avoid hitting a car that merged into your lane without looking, what happens to your car’s kinetic energy as it comes to a rest?