Indicate whether the following statements are true or false. (Give explanations
ID: 1360363 • Letter: I
Question
Indicate whether the following statements are true or false. (Give explanations for each) A ball thrown vertically upward has a non-zero instantaneous acceleration at the top of its flight. An object traveling on a circular path with constant speed is accelerating. A non-zero net force is needed to keep an object moving with constant velocity. It is not possible for a frictional force to act on an object when the object is not moving. If a linebacker runs at full speed into a much smaller receiver, he deliver a much greater force to the receiver than the receiver delivers to him.Explanation / Answer
1) False because acceleration due to gravity acts on the object
2) True, thoug hthe speed is constant, its direction changes continuously
3) False, If the object moves with constnat velocity, net force acting on it is zero
4) TRUE, this aries due to static friction
5) FALSE, the acction and reaction forces are of equal mangitudes