Question

A ball is projected from the foot of an inclined plane of inclination 30 degree at an angle 60 degree with the horizontal with velocity 20 root 3 metre per second the time after which the ball will strike the plane is?​

Answer 1

Answer:

Explanation:

By formula of time of flight on inclined plane i.e.

, T=2usin(alpha)/g cos(theta). ,.

Here alpha is 60-30=30° ,which is angle of projection from inclined plane , and theta is 30° which is angle of inclination...

Therefore T = 2×20√3×(sin30°)/10(cos30°), where g=10m/s^2.

After solving this we get T=4 sec ,

Answer 2

Answer:

hope it helps you!!!!!!!!!