Question

The acceleration due to gravity (g = -10 m/s^2)

What was the final velocity of the ball at 15 sec.?
a) 5 m/s
b) 10 m/s
c) 15 m/s
d) 0 m/s

Answer 1

The final velocity of the ball after 15 seconds with a uniform acceleration of -10 m/s² is -150 m/s. However, this answer does not match any of the provided options, indicating a possible error in the question or the options.

Step-by-step explanation:

The question asks for the final velocity of the ball after 15 seconds when it is subjected to a uniform acceleration due to gravity (g = -10 m/s²). To find the final velocity (v), we use the equation of motion v = u + at, where u is the initial velocity, a is the acceleration, and t is the time. Assuming the ball starts from rest (initial velocity u = 0), the equation simplifies to v = at. Substituting the given values, we get v = -10 m/s² × 15 s = -150 m/s. However, since none of the provided options (-150 m/s) match this result, there might be a mistake in the question prompt or the options provided.