Question

a ball is thrown vertically upward at 40m/s after 1 sec the velocity of the ball is

Answer 1

Answer:

30.2m/s

Explanation:

Use the equation v = u + at, where v is final velocity and u is initial velocity.

If we consider the +ve y axis as +ve, that is, if the upward direction is considered positive, then the downward direction is negative.

In this case, the acceleration of the body is the acceleration due to gravity in the downward direction, i.e a is negative

u = 40m/s , t = 1s , a = -9.8m/s^2

v = u + at

= 40 -9.8*1

= 30.2 m/s

Answer 2

Answer:

30.2

Explanation:

Thank me Boi

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