InterviewSolution
Saved Bookmarks
| 1. |
When a body moving along a straight line at20 m/s undergoes as acceleration of 4 m/s2after three seconds its speed will be-(a) 8 m/s(b) 12 m/s(C) 16 m/s(d) 32 m/s |
|
Answer» Here,v=?u=20a=4t=3 so,a=(v-u)/tor, 4=(v-20)/3or, v-20=12or, v=12+20or, v=32 |
|