Suppose an object that has a mass of 8.8 kg and slides on ice at a...

Suppose an object that has a mass of 8.8 kg and slides on ice at a speed of 13 m/s. It runs into another object, which is initially at rest and has a mass of 11.10 kg. They naturally stick together (in a perfectly elastic colision). What is their final velocity in (m/s)?

A 160 kg merry-go-round has a radius of 2.5 m and it is rotating with an angular velocity of 0.7 rev/s. What is its angular velocity after an at rest 86-kg person gets onto it by grabbing its outer edge?

Expert Solution

genius_generous answered 2 years ago

A bloke of mass 5 kg slides along an ice rink with a velocity of 3...

A bloke of mass 5 kg slides along an ice rink with a velocity of 3 m/s. It strikes another block of mass 4 kg in a perfectly elastic collision sending the second block sliding along the ice. The second block them collides with a third block with a massive 5 kg. Assuming to find a collision is perfectly elastic what is the velocity of the final block

Suppose a crate of mass 8.8 kg is placed on the plank in the figure below...

Suppose a crate of mass 8.8 kg is placed on the plank in the figure below at a distance x = 6.3 m from the left end. If the plank has a mass of 12 kg, find the forces exerted by the two supports on the plank. (Indicate the direction with the sign of your answer.)

An object of mass m1 = 0.435 kg starts from rest at point and slides down an...

An object of mass m1 = 0.435 kg starts from rest at point and slides down an incline surface that makes an angle θ = 36.0° with the horizontal as shown. The coefficient of kinetic friction between the object and the incline surface is 0.395. After sliding down a distance d = 5.60 m, it makes a perfectly inelastic collision with an object of mass m2 = 0.650 kg at point . a) Find the speed of m1 at point just before...

An object of mass m1 = 0.415 kg starts from rest at point and slides down an...

An object of mass m1 = 0.415 kg starts from rest at point and slides down an incline surface that makes an angle θ = 36.0° with the horizontal as shown. The coefficient of kinetic friction between the object and the incline surface is 0.455. After sliding down a distance d = 5.80 m, it makes a perfectly inelastic collision with an object of mass m2 = 0.645 kg at point . (a) Find the speed of m1 at point just before...

Beginning from rest, an object of mass 200 kg slides down a 9-m-long ramp. The ramp...

Beginning from rest, an object of mass 200 kg slides down a 9-m-long ramp. The ramp is inclined at an angle of 20o from the horizontal. Air resistance and friction between the object and the ramp are negligible. Let g = 9.81 m/s2. Determine the kinetic energy of the object, in kJ, and the velocity of the object, in m/s, at the bottom of the ramp.

An object has a mass in air of 0.0832 kg, apparent mass in water of 0.0673...

An object has a mass in air of 0.0832 kg, apparent mass in water of 0.0673 kg, and apparent mass in another liquid of 0.0718 kg. What is the specific gravity of the other liquid?

A mass m = 78 kg slides on a frictionless track that has a drop, followed...

A mass m = 78 kg slides on a frictionless track that has a drop, followed by a loop-the-loop with radius R = 15.4 m and finally a flat straight section at the same height as the center of the loop (15.4 m off the ground). Since the mass would not make it around the loop if released from the height of the top of the loop (do you know why?) it must be released above the top of the...

A mass m = 85 kg slides on a frictionless track that has a drop, followed...

A mass m = 85 kg slides on a frictionless track that has a drop, followed by a loop-the-loop with radius R = 18.9 m and finally a flat straight section at the same height as the center of the loop (18.9 m off the ground). Since the mass would not make it around the loop if released from the height of the top of the loop (do you know why?) it must be released above the top of the...

Two objects undergo an elastic collision. Object 1 has a mass of 1.35 kg and object...

Two objects undergo an elastic collision. Object 1 has a mass of 1.35 kg and object 2 a mass of 3 kg. Just prior to the collision, object 1 has a kinetic energy of 77 J and object 2 is at rest. What is the initial velocity of Object 1? What is the total kinetic energy of the two cart system after the collision? What is the total momentum of the two cart system after the collision?

A novelty clock has a 0.0104 kg mass object bouncing on a spring that has a...

A novelty clock has a 0.0104 kg mass object bouncing on a spring that has a force constant of 1.28 N/m. How many joules of kinetic energy does the object have at its maximum velocity if the object bounces 2.77 cm above and below its equilibrium position? What is the maximum velocity of the object in m/s? Show work.

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