An adventurous cliff jumper runs horizontally off a cliff at time t = 0. Which graph best describes the Jumper’s horizontal velocity over Time

The graph options are missing, so i have attached them.

Option A

Explanation:

Since he is running from the top of the cliff, it means his initial velocity is not zero.

However, when he jumps he will fall with a constant acceleration and come to rest at a velocity of 0 m/s

Since, he is undergoing constant but negative acceleration because of the downward fall against gravity, the velocity time graph will be diagonal.

Looking at the options, the one that suits definition above is option A

can be answered using momentum.

momentum = p

p1= mass1 * velocity1

p1 = p2

therefore

p1 = 6kg * 4m/s

p1 = 24kgm/s

p2=m2 * v2

24 kgm/s = 7kg * v2

v2 = 24 kgm/s / 7kg

v2= 3.42 m/s