Question

You launch a ball in the air with an initial velocity of 25 m/s.
What is the acceleration going up ?
A. 9.81 m/s2
B. - 9.81 m/s2
C. 25 m/s

Answer 1

The acceleration of the object projected upwards is -9.8 m/s².

The given parameters;

• initial velocity of the ball, u = 25 m/s

A projectile moving upwards is influenced by acceleration due to gravity. The direction of the acceleration due to gravity is always downwards.

The kinematic equation for calculating the velocity is given as;

v = u + gt

where;

• g is acceleration due to gravity

For upward motion, the equation is given as;

v = u + (-9.8)t

v = u - 9.8t

Thus, the acceleration of the object projected upwards is -9.8 m/s².

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