Author: Anonymous

When is the average velocity of an object  equal to the instantaneous velocity?

Suppose A = BC, where A has the dimension L / M and C has the dimension L / T. Then B has the dimension:

A car goes from 40 m/s to 80 m/s in a distance of 200 m.  What is its average acceleration?

A cart with an initial velocity of 5.0 m/s experiences a constant acceleration of 2.0 m/s2.  What is the cart’s displacement during the first 6.0 s of its motion?

A rectangle is 325 cm long and 150 cm wide. What is its area? Give the response in significant digits)

Which one of the following is NOT consistent with a car which is accelerating?

An object has a constant acceleration of -3 m/s2. The velocity versus time graph for this object has a slope:

An object with an initial velocity of 12 m/s east experiences a constant acceleration of 4 m/s2  east for 3 seconds. During this time the object travels a distance of:

Freefall acceleration g is the acceleration due to gravity. It equals 9.80 meters per second squared near the Earth’s surface. (a) What does it equal in feet per second squared? ( 1m = 3.280 feet)  

Which of the following has three significant digits?