Question

In: Physics

A batted baseball is hit with a velocity of 44 m/s, starting from an initial height...

A batted baseball is hit with a velocity of 44 m/s, starting from an initial height of 4 m. Find how high the ball travels in two cases:

(a) a ball hit directly upward and

(b) a ball hit at an angle of 69° with respect to the horizontal.

Also, find how long the ball stays in the air in each case.

case a:

case b:

Solutions

Expert Solution

(a) a ball hit directly upward

initial velocity,

Initial height,

Use formula

Velocity at Max height is zero

Total height =

ANSWER:

==================

Time

Going Up

Use formula

Coming Down

Use formula

Total time,

ANSWER:

=====================

(b)a ball hit at an angle of 69° with respect to the horizontal.

initial velocity,

Initial height,

Use formula

Total height =

ANSWER:

==================

Time ,Going up

Initial vertical velocity ,

Use formula

Coming Down

Use formula

Total time,

ANSWER:

=====================


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