Question

A 110 kg astronaut (including space suit) acquires a speed of 2.35 m/s by pushing off...

A 110 kg astronaut (including space suit) acquires a speed of 2.35 m/s by pushing off with his legs from a 2000 kg space capsule.

(a)

What is the change in speed of the space capsule?

Express your answer with the appropriate units.

(b)

If the push lasts ttt = 0.525 ss , what is the average force exerted by each on the other? As the reference frame, use the position of the capsule before the push.

Express your answer with the appropriate units.

(c)

What is the kinetic energy of the astronaut after the push?

Express your answer with the appropriate units.

(d)

What is the kinetic energy of the space capsule after the push?

Express your answer with the appropriate units.

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A 110-kg tackler moving at a speed of 2.5 m/s meets head-on (and holds on to)...
A 110-kg tackler moving at a speed of 2.5 m/s meets head-on (and holds on to) an 90-kg halfback moving at a speed of 5.0 m/s.What will be their mutual speed immediately after the collision? Express your answer to two significant figures and include the appropriate units.
An 91.0 kg spacewalking astronaut pushes off a 640 kg satellite, exerting a 85.0 N force...
An 91.0 kg spacewalking astronaut pushes off a 640 kg satellite, exerting a 85.0 N force for the 0.450 s it takes him to straighten his arms. How far apart are the astronaut and the satellite after 1.10 min ? Express your answer with the appropriate units. I got 33.6 m, but its not accepting the anser.
You and your fellow astronaut are floating in space right next to each other initially at...
You and your fellow astronaut are floating in space right next to each other initially at rest. You have a mass of 68 kg and your friend has a mass of 87 kg. You get into an altercation and your friend pushes you. After the push you are traveling at 2.5 m/s in the +x direction. What is your fellow astronauts velocity after the push? Express your answer in meters per second and round to one decimal place.
A ball of mass 0.458 kg moving east (+x direction) with a speed of 3.76 m/s...
A ball of mass 0.458 kg moving east (+x direction) with a speed of 3.76 m/s collides head-on with a 0.229 kg ball at rest. Assume that the collision is perfectly elastic. 1.What is be the speed of the 0.458-kg ball after the collision? Express your answer to three significant figures and include the appropriate units. 2.What is be the direction of the velocity of the 0.458-kg ball after the collision?. 3.What is the speed of the 0.229-kg ball after...
An astronaut is working outside of the International Space Station when her propulsion system stops working....
An astronaut is working outside of the International Space Station when her propulsion system stops working. She's floating in space, not moving relative to space station. Rather than have the rest of the crew break out the robotic arm to pick her up, she decides to use the tools at hand. The astronaut has a gun used for equipment repair that shoots metal pieces at a high speed. The mass of the astronaut and all her equipment is Ma. This...
A 0.450-kg ice puck, moving east with a speed of 5.46 m/s , has a head-on...
A 0.450-kg ice puck, moving east with a speed of 5.46 m/s , has a head-on collision with a 0.990-kg puck initially at rest. Assume that the collision is perfectly elastic. Part A What is the speed of the 0.450-kg puck after the collision? Express your answer to three significant figures and include the appropriate units. Part B What is the direction of the velocity of the 0.450-kg puck after the collision? Part C What is the speed of the...
Problem 7.26 A 0.250-kg ice puck, moving east with a speed of 5.62 m/s , has...
Problem 7.26 A 0.250-kg ice puck, moving east with a speed of 5.62 m/s , has a head-on collision with a 0.900-kg puck initially at rest. Assume that the collision is perfectly elastic. Part A What is the speed of the 0.250-kg puck after the collision? Express your answer to three significant figures and include the appropriate units. v1 = Part B What is the direction of the velocity of the 0.250-kg puck after the collision? What is the direction...
65A. A hockey puck is given an initial speed of 4.1 m/s. If the coefficient of...
65A. A hockey puck is given an initial speed of 4.1 m/s. If the coefficient of kinetic friction between the puck and the ice is 0.05, how far does the puck slide before coming to rest? Solve this problem using conservation of energy. Express your answer with the appropriate units. 65B. Consider a particle of mass mm = 18.0 kg revolving around an axis with angular speed ω r = 0.500 m . Assume ω = 29.0 rad/s-What is the...
A rocket with mass 6.00×103 kg is in a circular orbit of radius 7.10×106 m around...
A rocket with mass 6.00×103 kg is in a circular orbit of radius 7.10×106 m around the earth. The rocket's engines fire for a period of time to increase that radius to 8.90×106 m , with the orbit again circular. What is the change in the rocket's kinetic energy? Does the kinetic energy increase or decrease? Express your answer with the appropriate units. Enter positive value if the kinetic energy increases and negative value if the kinetic energy decreases. What...
IP A bullet with a mass of 4.2 g and a speed of 640 m/s is...
IP A bullet with a mass of 4.2 g and a speed of 640 m/s is fired at a block of wood with a mass of 9.8×10−2 kg . The block rests on a frictionless surface, and is thin enough that the bullet passes completely through it. Immediately after the bullet exits the block, the speed of the block is 21 m/s . What is the speed of the bullet when it exits the block? Is the final kinetic energy...