You, mass = m, are traveling at a constant velocity, u, on a skateboard. Your friend, mass= 1.25m, hops on and pushes off the ground with force, F. propelling the skateboard forward at a greater velocity. For simplicity, consider the skateboard is massless. If the force is applied for a distance d, by which of the following factors did the kinetic energy change? Elimination Tool Select one answer A Fd+ 0.22mv² B C 5.06 4.5Fd mv² D Fd +1

You, mass = m, are traveling at a constant velocity, u, on a skateboard. Your friend, mass= 1.25m, hops on and pushes off the ground with force, F. propelling the skateboard forward at a greater velocity. For simplicity, consider the skateboard is massless. If the force is applied for a distance d, by which of the following factors did the kinetic energy change? Elimination Tool Select one answer A Fd+ 0.22mv² B C 5.06 4.5Fd mv² D Fd +1

Name: You, mass = m, are traveling at a constant velocity, u, on a skateboa
Uploaded: 2024-03-20T06:57:37.000Z
Channel: Bartleby
Description: You, mass = m, are traveling at a constant velocity, u, on a skateboard. Your friend, mass= 1.25m, hops on andpushes off the ground with force, F. propelling the skateboard forward at a greater velocity. For simplicity, consider theskateboard is mas

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter11: Energy And Its Conservation

Section: Chapter Questions

Problem 55A

See similar textbooks

Similar questions

A small block of mass 200 g starts at rest at A, slides to B where its speed is then slides along the horizontal surface a distance 10 m before coming to rest at C. (See below.) (a) What is the work of friction along the curved surface? (b) What is the coefficient of kinetic friction along the horizontal surface?
Att = 1.0 s, a 0.54 kg object is falling with a speed of 8.5 m/s. At t = 2.0 s, it has a kinetic energy of 38 J. What is the kinetic energy of the object at t = 1.0 s? Express your answer in joules. VO AL ? K = J Submit Requeet Anewer Part B What is the speed of the object at t = 2.0 s? Express your answer in meters per second. m/s Submit Requeet Answer Part C How much work was done on the object between t = 1.0 s and t = 2.0 s? Express your answer in joules. ΑΣΦ ? W =
Solve the following problem. Show all work and use S.I. units. A 50 kg girl and a 40 kg boy face each other (at rest) on friction-free roller skates. The girl pushes the boy, who moves away at a speed of 2 m/s. What is the girl's speed?
Remember to include given information, basic equations, calculations, and solutions with correct units for full credit. You are NOT to use kinematics unless otherwise stated. Black Panther (90.0 kg) is running along the ground and then must quickly slide to a stop after traveling at a speed of 15.0 m/s. Using the Work–Energy Theorem, a. Determine the coefficient of kinetic friction between his feet and the ground if he slides 24.0 m. b. How much power is done by the net force? You will need to use a kinematic equation to find time prior to completing this part.
* 00 A skateboarder at a skate park rides along the path shown in the following figure. If the speed of the skateboarder at point A is v = 1.5 m/s, what is her speed at point B? The skateboarder's mass is 20 kg. Assume that friction is negligible. a A. 5.5 m B. 1.8 m B. 1) List the number and associate it with a symbol. Please include unit. Symbol Number Information at point A Information at point B MacBook Pro G Search or type URL %2$ ) 4. R
I need help for the remaining follow up question. Attach here are the given as well as other answers. d. What is the weight force on the crate?e. What is the net force on the crate?f. What is the deceleration of the crate?g. Find the work done by each force acting on the crate.h. Find the total work done by all the forces.
An empty freight car with a mass of 10,000 kg rolls at 5 m/s along a level track and collides with a loaded car with a mass of 20,000 kg, standing at rest with breaks Friction can be neglected. If the cars couple together, find their velocities after the collision. a. Find the decrease in kinetic energy as a result of the and b. with that speed should the loaded car be rolling toward the empty car for both to be brought to rest collision?
Projectile Motion and Conservation of Energy Derive a set of equations that perdict the x-position where the ball hits the ground (y=0). This expression should depend only on the measured parameters shown in Figure 1 below: h1, h2, h3, D, L and value change h' 1. Find the magnitude of launching velocity v by using the conservation of total mechancial energy (incorporating the estimate of the energy lost to friction. 2. Find the horizontal velocity vx vertical velocity vy by referring to referring to the geometry of the final section of the track. 3. Find the time the ball is in the air t by considering the vertical motion involving vy and h2 alone. 4. Finally find the rang x Steps 3 and 4 may be combined by using the trajectory equation y(x) obtained by eliminating the time in equations for y(t) and x(t).
A 360 kg piano slides 2.6 m down a 24° incline and is kept from accelerating by a man who is pushing back on it parallel to the incline (see the figure). Ignore friction. Part A Determine the force exerted by the man. Express your answer to two significant figures and include the appropriate units.
A 65.0-kg file cabinet of is sliding down a rough ramp for a distance of 5.00 m as shown. The friction force on the box is 75.0 N. The cabinet starts from rest. What is its speed at the end of the ramp, in m/s? Use g = 10.0 m/s2. Your answer needs to have 2 significant figures, including the negative sign in your answer if needed. Do not include the positive sign if the answer is positive. No unit is needed in your answer, it is already given in the question statement. 5.0 m 15.0°
A 0.0001 kg flea jumps 0.03 m from a dog's back. a. Calculate the PE at 0.03 m above the dog b. Determine the KE with which the flea left the dog's back c.With what velocity did the flea jump off the dog's back?
you psush a file acbinet up a rough ramp titled at 10 degreee with horizontak. The file cabinet has a mass 82kg and you are pushing with a 260N force in the direction up along the ramp. The friction force on the cabinet from the ramp is 35N. It's moved 3.00m up along the ramp. a.whats the workdone by you on the cabinet b. whats the workdone by the frictiion force d. whats the change in gravitational potential energy, positive or negative