Aroller coaster car rapidly picks up speed as it
rolls down a hlope. as it starts down the slope,
its speed is 4 m/s. but 3 seconds later, at the
bottom of the slope, its speed is 22 m/s. what is
the car’s acceleration?

According to newton’s first law of motion, which force is expected to cause a body to accelerate?

Ahanging spring stretches by 35.0 cm when an object of mass 450 g is hung on it at rest. in this situation, we define its position as x = 0. the object is pulled down an additional 18.0 cm and released from rest to oscillate without friction. what is its position x at a moment 84.4 s later? express your answer in cm.

How to calculate voltage drop in a series circuit