Sara takes a 40-minute bus ride from her home to her grandparents' home, which is 8 km away. What is the average speed of the bus?

A stone is thrown with a speed v0 and returns to earth, as the drawing shows. Ignore friction and air resistance, and consider the initial and final locations of the stone.

In a test run, a certain car accelerates uniformly from zero to 24.0 m/s in 2.95 s. (a) What is the magnitude of the car's acceleration? (b) How long does it take the car to change its speed from 10.0 m/s to 20.

A passenger on your boat falls overboard. what should you do while this person is being pulled back into the boat?

A 2.10 X 10^3 kg car starts from rest at the top of a 5.0 mlong driveway that is sloped at 20 degrees with the horizontal. Ifan average friction force of 4.0 X 10^3 N impedes the motion, findthe speed of the car at the bottom of the driveway.

The masses of the objects are m1 = 17.0 kg and m2 = 10.5 kg, the mass of the pulley is M = 5.00 kg, and the radius of the pulley is R = 0.300 m. Object m2 is initially on the floor, and object m1 is initially 4.

Eli rolled a ball down the cement sidewalk as hard as he could. The ball rolled for less than a minute before it came to a stop. What force acted to slow and finally stop the ball? A.

Which of the following statements best explains why a book resting on a table is in equilibrium? a. The acceleration due to gravity is 9.8 m/s 2 for both the book and the table. b. There is a net force acting downward on the book. c.

About how long does it take for sound to travel 1 Km?

You can increase the capacitance of a capacitor by

What is Hook's law in elasticity