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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

Respuesta :

Answer:Impossible to answer without knowing their actual initial speeds

Explanation:

Given

Ball A launched at angle of [tex]20^{\circ}[/tex]

Ball B is launched at angle of [tex]75^{\circ}[/tex]

At the highest  point Ball vertical velocity will be and there will be only horizontal velocity i.e. [tex]v_acos20[/tex] and [tex]v_bcos75[/tex]

where [tex]v_a and v_b[/tex] 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.

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