Question

a body is projected with velocity u=50ms at an angle of 37 degree ​

Answer 1

Answer:

Explanation:

H = u²(sinФ)²/2g

   = (50)²(3/5)²/20

   = 2500*9/500 = 45

After reaching maximum height, the object should have a free fall .

V²=u²+2*g*H'

   = 0 + 20*65 =1300

So, v =√1300 = 10√13