"Maria Throws A Ball Straight Up With An Initial Velocity Of 10 M/S. After 1 Second What Is The Acceleration Of The Ball?, A. 0 M/S, B. 0 M/S2, C. 9.8

"Maria throws a ball straight up with an initial velocity of 10 m/s. After 1 second what is the acceleration of the ball?

a. 0 m/s
b. 0 m/s2
c. 9.8 m/s2
d. - 9.8 m/s2
e. 10 m/s2
f. -10 m/s
g. cannot be determined
"

Answer:

The acceleration is D which is -9.8\frac{m}{s^2}

Explanation:

Assuming that Maria is an Earthling, the acceleration of the ball thrown at a vertical projectile would be -9.8\frac{m}{s^2} .

Acceleration is the change of velocity over a period of time (\frac{v}{t}). Here on Earth, every matter is pulled towards the center at the constant rate of 9.8\frac{m}{s^2} (gravity) . In the context given, Maria threw the ball upwards. Since the object is acting against the gravity the acceleration would be negative to indicate both direction of the ball and the magnitude of the acceleration.

CODE:

9.22.4.1.


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