InterviewSolution
Saved Bookmarks
| 1. |
5. A projectile has a maximum range of 16 km. At theighest point of its motion, it explodes into two equalmasses. One mass drops vertically downwards. Thehorizontal distance covered by the other mass from thetime of explosion is:a) 8 km (b) 16 km (c) 24 km(d) 32 km6. A body of mass m is projected horizontally with avelocity v form the top of a tower of height h and itreaches the ground at a distance x from the foot of thetower. If a second body of mass 2m is projectedhorizontally form the top of a tower of height 2h, itreaches the ground at a distance 2x from the foot thetower. The horizontal velocity of the second body is:a)v (b) 2v(c) V2 v (d) v/297, A ball rolls off the top of a staircase with a horizontalvelocity u m/s. If the steps are h metre high and bmetre wide, the ball will hit the edge of the nth step, if:(a)n=2m2hu2gb2b2 |
|
Answer» please specify one question |
|