Question

Notify Me Bookmark

A luge and its rider, with a total mass of 84.0 kg , emerge from a downhill track onto a horizontal straight track with an initial speed of 31.0 m/s. If a force slows them to a stop at a constant rate of 2.30 m/s2, (a) what magnitude F is required for the force, (b) what distance d do they travel while slowing, and (c) what work W is done on them by the force? What are (d) F, (e) d, and (f) W if they, instead, slow at 4.60 m/s2? (a) Number Units (b) Number Units (c) Number Units (d) Number Units (e) Number (f) Number Units

A luge and its rider, with a total mass of 84.0 kg , emerge from a downhill track onto a horizontal straight track with an initial speed of 31.0 m/s. If a force slows them to a stop at a constant rate of 2.30 m/s2, (a) what magnitude F is required for the force, (b) what distance d do they travel while slowing, and (c) what work W is done on them by the force? What are (d) F, (e) d, and (f) W if they, instead, slow at 4.60 m/s2? (a) Number Units (b) Number Units (c) Number Units (d) Number Units (e) Number (f) Number Units

Image text
A luge and its rider, with a total mass of 84.0 kg , emerge from a downhill track onto a horizontal straight track with an initial speed of 31.0 m / s . If a force slows them to a stop at a constant rate of 2.30 m / s 2 , (a) what magnitude F is required for the force, (b) what distance d do they travel while slowing, and (c) what work W is done on them by the force? What are (d) F, (e) d , and (f) W if they, instead, slow at 4.60 m / s 2 ? (a) Number (b) Number (c) Number (d) Number (e) Number (f) Number i i i i ◻ i i i i i Units ◻ Units ◻ Units ◻ Units ◻ Units ◻ Units ◻

Detailed Answer

0 0

Please enter your email here. You will get email when this question is answered by our tutor.

Doubtrix Logo

Problem is not yet solved!

Click on Notify me to get email when question is answered.

Join Doubtrix with 7-days free trial

  • Icon Correct & Verified Answers
  • Icon No AI-Generated Answers
  • Icon Video Solution for Difficult Questions
  • Icon Work With Experts to Reach at Correct Answers
Notify me Login Sign Up

Similar/Related Questions

The figure shows a ball with mass m = 0.354 kg attached to the end of a thin rod with length L = 0.597 m and negligible mass. The other end of the rod is pivoted so that the ball can move in a vertical circle. The rod is held horizontally as shown and then given enough of a downward push to cause the ball to swing down and around and just reach the vertically upward position, with zero speed there. How much work is done on the ball by the gravitational force from the initial point to (a) the lowest point, (b) the highest point, and (c) the point on the right level with the initial point? If the gravitational potential energy of the ball-Earth system is taken to be zero at the initial point, what is it when the ball reaches (d) the lowest point, (e) the highest point, and (f) the point on the right level with the initial point? (a) Number Units (b) Number Units (c) Number Units (d) Number Units (e) Number Units (f) Number Units
Solution
0 0

Tarzan, who weighs 870 N, swings from a cliff at the end of a 22.2 m vine that hangs from a high tree limb and initially makes an angle of 25.2∘ with the vertical. Assume that an x-axis points horizontally away from the cliff edge and a y-axis extends upward. Immediately after Tarzan steps off the cliff, the tension in the vine is 787 N. Just then, what are (a) the force from the vine on Tarzan in unit-vector notation, and (b) the net force acting on Tarzan in unit-vector notation? What are (c) the magnitude and (d) the direction (measured counterclockwise from the positive x-axis) of the net force acting on Tarzan? What are (e) the magnitude and (f) the direction of Tarzan's acceleration just then? (a) Number i^ + j^ Units (b) Number i^ + j^ Units (c) Number Units (d) Number Units (e) Number Units (f) Number Units
Solution
0 0

A yo-yo has a rotational inertia of 766 g⋅cm2 and a mass of 116 g. Its axle radius is 2.94 mm, and its string is 143 cm long. The yo-yo rolls from rest down to the end of the string. (a) What is the magnitude of its linear acceleration? (b) How long does it take to reach the end of the string? As it reaches the end of the string, what are its (c) linear speed, (d) translational kinetic energy, (e) rotational kinetic energy, and (f) angular speed? (a) Number Units (b) Number Units (c) Number Units (d) Number Units (e) Number Units (f) Number Units
Solution
0 0