In 10s a car accelerates 4m/s^2 to 60m/s. how fast was the car going before it accelerated?

Abike rider starts from rest and accelerates 28.0 meters down a slope in 5.00 seconds. what is her acceleration? select one: a. 3.21 m/sec2 b. 1.75 m/sec2 c. 9.80 m/sec2 d. 2.24 m/sec2

Which sound characteristic is not affected by the relative motion of an object

What kind of simple machine is a catapult?