Questions from College Physics

Q: Two blocks of masses m1 = 2.00 kg and m2

Two blocks of masses m1 = 2.00 kg and m2 = 4.00 kg are each released from rest at a height of h = 5.00 m on a frictionless track, as shown in Figure P6.70, and undergo an elastic headon collision. (a)...

Q: A block with mass m1 = 0.500 kg is released

A block with mass m1 = 0.500 kg is released from rest on a frictionless track at a distance h1 = 2.50 m above the top of a table. It then collides elastically with an object having mass m2 = 1.00 kg t...

Q: Two objects of masses m and 3m are moving toward each other

Two objects of masses m and 3m are moving toward each other along the x-axis with the same initial speed v0. The object with mass m is traveling to the left, and the object with mass 3m is traveling t...

Q: A small block of mass m1 = 0.500 kg is

A small block of mass m1 = 0.500 kg is released from rest at the top of a curved wedge of mass m2 = 3.00 kg, which sits on a frictionless horizontal surface as in Figure P6.73a. When the block leaves...

Q: A car of mass m moving at a speed v1 collides and

A car of mass m moving at a speed v1 collides and couples with the back of a truck of mass 2m moving initially in the same direction as the car at a lower speed v2. (a) What is the speed vf of the two...

Q: A cannon is rigidly attached to a carriage, which can move

A cannon is rigidly attached to a carriage, which can move along horizontal rails, but is connected to a post by a large spring, initially unstretched and with force constant k = 2.00 x 104 N/m, as in...

Q: Two blocks collide on a frictionless surface. After the collision,

Two blocks collide on a frictionless surface. After the collision, the blocks stick together. Block A has a mass M and is initially moving to the right at speed v. Block B has a mass 2M and is initial...

Q: (a) A car traveling due east strikes a car traveling

(a) A car traveling due east strikes a car traveling due north at an intersection, and the two move together as a unit. A property owner on the southeast corner of the intersection claims that his fen...

Q: A 60-kg soccer player jumps vertically upwards and heads the

A 60-kg soccer player jumps vertically upwards and heads the 0.45-kg ball as it is descending vertically with a speed of 25 m/s. (a) If the player was moving upward with a speed of 4.0 m/s just before...

Q: A boy of mass mb and his girlfriend of mass mg,

A boy of mass mb and his girlfriend of mass mg, both wearing ice skates, face each other at rest while standing on a frictionless ice rink. The boy pushes the girl, giving her a velocity vg toward the...