Stored energy or energy of position that can be released or harnessed to do work
A: potential energy
B: kinetic energy
C: thermal energy
D: nuclear energy

Alexander calder's mobiles are an example of motion because it uses forces of wind and water.

An open cart is moving along a straight frictionless horizontal track. when rain starts falling vertically into the cart, what happens to the speed of the cart?

14. a body is projected with velocity vi from a.at the same time another body is projectedvertically upwards from point b withvelocity v2 lies vertically below the highestpoint. both the bodies collide thenv2÷v1is