Question

a body is projected vertically upward if T1 and t2 be the times at which it is at height H above the point of projection

Answer 1

a body is projected vertically upwards from the ground.It is found at the same elevation at t=3 and t=7s after projection.Find the projection speed.

Answer.

U=g÷2(t1+t2)

=5×(3+7)

=5×10

=50m/s.

U=g÷2(t1+t2)

=5×(3+7)

=5×10

=50

Hope this helps you dear friend\