Question

An object originally moving at a speed of 20.0
meters per second accelerates uniformly for 5.0 seconds to a final speed of 50.0 meters per second. What is the acceleration of the object?

Answer 1

Answer:

6.0 m/s^2           There are 2 places of accuracy. (5.0 has only two places)

Explanation:

Formula

This uses the formula

a = (vf - vi)/t where

• a is the acceleration
• vf is the final speed
• vi is the starting speed.
• t is the time taken

Solution

Substitute the givens into the formula

a = (50m/s - 20 m/s)/5

a = 30/5

a = 6 m/s^2