Question

question no. 26 it is of motion in a plane Topic: Projectile Motion

Answer 1

use the formula for max height H max = u^2 sin^2 @ / 2 g

So for first object u1^2 * sin ^2 45 / 2 g

For the second u2^2 * sin^2 60 / 2g

As both are said to be equal, equating and cancelling 2 g and taking square root on both sides

u1 sin 45 = u2 sin 60

So u1/u2= sin60/sin45

               =√3/√2

answer is option (4)

Answer 2

Answer:

Explanation:

Vertical component of one = vertical component of second

V1sin45=v2sin60

V1/V2= root (3/2)