A 2kg object starts at rest at the top of a slope which is 10 meters high. A. What are its initial potential and kinetic energies?

B. How fast is it going when it reaches the bottom of the slope?

C. When the object reaches the bottom of the slope, it continues sliding on the ground. If there is a coefficient of kinetic friction of 0.5 between the object and the ground, What is the force of kinetic friction on the object?

D. Using the force you just calculated and what you know about work and energy, how far will the object travel before stopping (use work and energy, not kinematics)

Aria drove to the store, did some shopping, and then came home. during maria's trip, when was her displacement equal to zero?

As part of your daily workout, you lie on your back and push with your feet against a platform attached to two stiff springs arranged side by side so that they are parallel to each other. when you push the platform, you compress the springs. you do an amount of work of 79.0 j when you compress the springs a distance of 0.230 m from their uncompressed length. (a) what magnitude of force must you apply to hold the platform in this position? (b)how much additional work must you do to move the platform a distance 0.230 m farther? (c) what maximum force must you apply to move the platform a distance 0.230 m farther?

Two balls, each with a mass of 0.5 kg, collide on a pool table. is the law of conservation of momentum satisfied in the collision? explain why or why not