Two balls are kicked with the same initial speeds. ball a was kicked at the angle 20° above horizontal and ball b was kicked at the angle 75° above horizontal. what ball will have bigger speed at the highest point of their trajectory? (section 4.3) ball a ball b impossible to answer without knowing their actual initial speeds. they will have the same speeds

Impossible to answer without knowing their actual initial speeds

Explanation:

Given

Ball A launched at angle of

Ball B is launched at angle of

At the highest  point Ball vertical velocity will be and there will be only horizontal velocity i.e. and

where is the velocity of A & B

thus to find which one is greater we need to know their initial velocity.

It is impossible to know which one have higher velocity at highest point.

a person with a mass of 106kg has a weight of 1060n