- #1
stupif
- 99
- 1
1. stone p is releasedfrom a cliff of height 122.5m above the ground. after falling a distance of 19.6m, another stone Q is lauched straight downward.if given that p and Q reached the ground same time, find the initial velocity of Q( answer :26.1m/s
i using s=ut +1/2a[t][2] to find out the t, t= 5s
time of p=time of Q
i using s=ut +1/2a[t][2] to find out the initial velocity of u by change the S.
my answer is -3.92m/s
i using s=ut +1/2a[t][2] to find out the t, t= 5s
time of p=time of Q
i using s=ut +1/2a[t][2] to find out the initial velocity of u by change the S.
my answer is -3.92m/s