Question

A luge and its rider, with a total mass of 76.0 kg, emerge from a downhill...

A luge and its rider, with a total mass of 76.0 kg, emerge from a downhill track onto a horizontal straight track with an initial speed of 35.0 m/s. If a force slows them to a stop at a constant rate of 4.00 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 8.00 m/s2?

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 luge and its rider, with a total mass of 50 kg, emerge from a downhill...
A luge and its rider, with a total mass of 50 kg, emerge from a downhill track onto a horizontal straight track with an initial speed of 39 m/s. If a force slows them to a stop at a constant rate of 1.2 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,...
A car of 1000 kg with good tires on a dry road can decelerate (slow down)...
A car of 1000 kg with good tires on a dry road can decelerate (slow down) at a steady rate of about 5.0 m/s2 when braking. If a car is initially traveling at 20 m/s (45 mi/h), (a) How much time does it take the car to stop? (b) What is its stopping distance? (c) What is the deacceleration? (d) How big is the net force to be applied to stop this car? (e) Calculate the work done by this...
1`A puck of mass 0.110 kg slides across ice in the positive x-direction with a kinetic...
1`A puck of mass 0.110 kg slides across ice in the positive x-direction with a kinetic friction coefficient between the ice and puck of 0.167. If the puck is moving at an initial speed of 15.0 m/s, find the following. (a) What is the force of kinetic friction? (Indicate the direction with the sign of your answer.) N (b) What is the acceleration of the puck? (Indicate the direction with the sign of your answer.) m/s2 (c) How long does...
A baby bird falls from its nest in a tree. Luckily, Sasquatch catches the baby bird...
A baby bird falls from its nest in a tree. Luckily, Sasquatch catches the baby bird before it hits the ground, bringing it to rest. Which describes the work W done by Sasquatch on the baby bird and its change in gravitational potential energy ∆Ugrav between the nest and where it was caught? A. W > 0, ∆Ugrav < 0 B. W > 0, ∆Ugrav > 0 C. W = 0, ∆Ugrav > 0 D. W < 0, ∆Ugrav <...
An object with a mass m = 3.5 kg is released from rest at the top...
An object with a mass m = 3.5 kg is released from rest at the top of the ramp. The length of the ramp is 4 m. The object slides down the ramp reaching a speed of 1.8 m/s at the bottom. (a) How much time (in sec) does it take the object to reach the bottom of the ramp? (use kinematics equations) (b) What is the acceleration of the object (in m/s2 )? (use kinematics equations) (c) If the...
A spring of negligible mass stretches 3.00 cm from its relaxed length when a force of...
A spring of negligible mass stretches 3.00 cm from its relaxed length when a force of 7.10 N is applied. A 0.440-kg particle rests on a frictionless horizontal surface and is attached to the free end of the spring. The particle is displaced from the origin to x = 5.00 cm and released from rest at t = 0. (Assume that the direction of the initial displacement is positive. Use the exact values you enter to make later calculations.) (a)...
A 2400-kg test rocket is launched vertically from the launch pad. Its fuel (of negligible mass)...
A 2400-kg test rocket is launched vertically from the launch pad. Its fuel (of negligible mass) provides a thrust force so that its vertical velocity as a function of time is given by v(t)=At+Bt2, where A and B are constants and time is measured from the instant the fuel is ignited. At the instant of ignition, the rocket has an upward acceleration of 1.90 m/s2 and 1.20 s later an upward velocity of 1.50 m/s . Part A) Determine A....
a) An oil droplet with a mass of 7.20 x 10-16 kg is moving upward at...
a) An oil droplet with a mass of 7.20 x 10-16 kg is moving upward at a constant speed of 2.0 m/s between two horizontal charged plates. If the electric field strength between the plates is 2.20 x 104 V/m what is the charge on the oil droplet ? answer in the format of a.bc x 10-de C b) An oil droplet with a mass of 3.50 x 10-15 kg accelerates downward at a rate of 2.50 m/s2 when it...
Two boxes are stacked, with box B placed on top of box A. If box A...
Two boxes are stacked, with box B placed on top of box A. If box A is pushed such that both boxes move with a decreasing speed, is there any friction on either box? (a) Kinetic friction on box A and no friction on box B (b) Kinetic friction on box A and static friction on box B (c) Kinetic friction on box A and kinetic friction on box B (d) Static friction on box A and kinetic friction on...
ch 6 1: It is generally a good idea to gain an understanding of the "size"...
ch 6 1: It is generally a good idea to gain an understanding of the "size" of units. Consider the objects and calculate the kinetic energy of each one. A ladybug weighing 37.3 mg flies by your head at 3.83 km/h . ×10 J A 7.15 kg bowling ball slides (not rolls) down an alley at 17.5 km/h . J A car weighing 1260 kg moves at a speed of 49.5 km/h. 5: The graph shows the ?-directed force ??...