Two carts on an air track collide as shown in the animation (position is in meters and time is in seconds). What is the ratio of the mass of the blue cart to the mass of the red cart (i.e., mblue/mred )? Start
Interactive Hint
A small car (red) collides head-on with a large truck (blue) as shown in the animation. After the collision,the vehicles skid to a stop. Which vehicle undergoes the larger change in momentum (magnitude) due to the collision? Start
Which ball undergoes the greater change in momentum after colliding with the table? Start
A collision occurs between two pucks on an air hockey table. Is the collision elastic or inelastic? Start
A ball is dropped on a hard floor as shown in the animation. What is the coefficient of restitution for the ball? Coefficient of restitution is defined as the relative velocity of two objects after a collision divided by the relative velocity of the two objects before the collision, (v'1-v'2)/ (v2-v1) . Start
A 1.5 kg ball (blue) collides with another ball as shown in the animation (position is in meters and time is in seconds). If 43.6% of the energy is lost due to the collision, what is the mass of the red ball? Start
Using a spring gun, a steel ball is shot into a pendulum, bob, which is specially constructed to catch the ball. What is the ratio of the mass of the ball to the mass of the pendulum? Start
A collision occurs between billiard balls as shown in the animation. Is kinetic energy conserved in this collision? Start
A model CO atom is shown. How far is the center of mass from the carbon atom (position is displayed in units of angstroms)? Start
A spring is attached to a cart on an air track. With the spring compressed and locked, the cart is brought into contact with another cart. When the spring is released, the carts travel as shown in the animation. What is the velocity of the center of mass of the two carts after the spring is released (position is shown in meters and time is in seconds)? Start
The black ball has a mass of 200 gm. The red ball has a mass of 300 gm. Find the velocity of the center of mass? Start
