Q 1: Which couldpotentially cause you the greater injury; being tackled by aligh

ID: 1678626 • Letter: Q

Question

Q 1:

Which couldpotentially cause you the greater injury; being tackled by alight-weight,

fast-moving footballplayer, or being tackled by a player with double the massbut

Q 2:

For each situation,state whether the collision is elastic or inelastic. If it isinelastic, state

whether it iscompletely inelastic or not?

a) You drop a ballfrom your hand. It collides with the floor and bounces back upso

that it just reachesyour hand.

b) You drop adifferent ball from your hand and let it collide with the ground.This

ball bounces back upto half the height from which it was dropped.

Q 3:

Will the centre ofmass in Fig, 1 continue on the same parabolic trajectory even afterone

Q 4:

(a)If a rocket ingravity- free outer space has the same thrust at all times, isits

acceleration constant,increasing or decreasing?

(b) If the rocket hasthe same acceleration at all times, is the thrust constant,increasing or

decreasing?

Q3) No picture

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