1.

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»

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\





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