Question

A scooter accelerates at 4.2 m/s2 from rest. How fast is the scooter moving after 3.0 seconds?

A soccer ball accelerates from rest and rolls 6.5m down a hill for 3.1 seconds. It is then stopped by a tree. Find final velocity.

Answer 1

The scooter is moving at a speed of 12.6 m/s after 3.0 seconds.

Step-by-step explanation:

To find the final velocity of the scooter, we can use the equation:

v = u + at

where v is the final velocity, u is the initial velocity (which is 0 in this case), a is the acceleration, and t is the time taken.

Plugging in the given values, we have:

v = 0 + (4.2 m/s²)(3.0 s) = 12.6 m/s

Therefore, the scooter is moving at a speed of 12.6 m/s after 3.0 seconds.