1. A 6.7 kg object initially starts from rest at the top of a ramp. The length of the ramp is 5.5 m and forms an angle of 23° above the horizontal. When the object reaches a height of 1.5 m, it has a speed of 3.0 m/s. Ramp -5.5 m m = 6.7 kg 1.5 m 23° What is the force of friction?

1. A 6.7 kg object initially starts from rest at the top of a ramp. The length of the ramp is 5.5 m and forms an angle of 23° above the horizontal. When the object reaches a height of 1.5 m, it has a speed of 3.0 m/s. Ramp -5.5 m m = 6.7 kg 1.5 m 23° What is the force of friction?

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter7: Rotational Motion And Gravitation

Section: Chapter Questions

Problem 54AP: A 0.400-kg pendulum bob passes through the lowest part of its path at a speed of 3.00 m/s. (a) What...

See similar textbooks

Related questions

Q: A tow truck finally arrives to relieve Granny. Once the car (m = 1600 kg) was hitched up, it was…

A: Given data: Mass (m) = 1600 kg Initial velocity (u) = 0 m/s Final velocity (v) = 25 m/s Distance…

Q: 8. A 0.56-kg ball is thrown vertically upward with an initial speed of 16.5 m/s. What is the speed…

A: GIVEN Mass of the ball = m = 0.56 kg Initial speed of the ball = V1 = 16.5 m/s…

Q: A 10 kg object is released at the top of a building 100 m high. If the force of air resistance is on…

A: Given: The mass (m) of the object is 10 Kg. The height (h) of the building is 100 m. The force of…

Q: A 600 kg roller coa sters starts at A and moves to B and then to C under the influence of gravity…

Q: An adult dolphin weighs about 1700 N. With what speed v; must he be moving as he leaves the water in…

A: Data Given , Weight of the dolphin ( W ) = 1700 N height of the jump ( h ) = 2.50 m

Q: A child is sitting in a wagon at the top of a hill. The mass of the child and wagon together is 40.0…

A: Given Data: The child and wagon together is: m=40.0 kg The distance covered on the inclined hill is:…

Q: Starting from rest, a 92-kg firefighter slides down a fire pole. The average frictional force…

Q: An 83 kg man lowers himself to the ground from a height of 8.7 m by holding onto a rope that runs…

Q: A bug slides back and forth in a bowl 15 cm deep, starting from rest at the top, as shown below. The…

Q: A 4-kg block is placed at point 1 on the track that is 3.5 m above the ground. Paths 1-2 and 3-4 are…

Q: If the average force of friction is equal to 0.15 of its weight, with what speed will it reach point…

A: The speed of car at point 1 is1.30m/sThe frictional force= 0.15 *weight of the car=The distance…

Q: - A box is being pulled up a 40° incline by a 7.0 kg block suspended from a frictionless, massless…

Q: Swimmers at a water park have a choice of two frictionless water slides as shown in the figure.…

A: Introduction: According to the conservation of energy, the initial energy of a system is equal to…

Q: A 4.0 kg block is initially at rest at a height of H=4.0 m on a ramp. The block then slides down a…

Q: Starting from rest, a 91-kg firefighter slides down a fire pole. The average frictional force…

Q: In the figure, a 3.8 kg block slides along a track from one level to a higher level after passing…

A: Conservation of energy without friction

Q: The 70 kg A skier starts from a standing position from a height of 34.202 m, slides down from the…

Q: _0-kg block is push coefficient of kinetic nagnitude of the co

A: Given values:- mass of the block,(m)=10 kg ----(1) Angle inclined,(θ)=30 0 -----(2) Length of the…

Concept explainers

Static and Kinetic Friction

Kinetic friction comes into existence when there are moving surfaces means in other words we can say that the force which comes into existing between moving surfaces is known as kinetic friction.

Question

1. A 6.7 kg object initially starts from rest at the top of a ramp. The length of the ramp is 5.5 m
and forms an angle of 23° above the horizontal. When the object reaches a height of 1.5 m,
it has a speed of 3.0 m/s.
Ramp
-5.5 m
m = 6.7 kg
1.5 m
23°
What is the force of friction?

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 steps with 3 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.

Similar questions

A 0.400-kg pendulum bob passes through the lowest part of its path at a speed of 3.00 m/s. (a) What is the tension in the pendulum cable at this point if the pendulum is 80.0 cm long? (b) When the pendulum reaches its highest point, what angle does the cable make with the vertical? (c) What is the tension in the pendulum cable when the pendulum reaches its highest point?
1. A 45.0 kg object is pushed up an incline as shown with a horizontal force of 300.0 N. The object is initially at rest but it starts moving up the incline. Find the speed of the object after 3.50 s if the coefficient of kinetic friction between the object and the incline is 0.25 and the object is still on the incline after 3.50s. 240 N I. 20.00
3. A skier of mass m starts from rest at the top of a frictionless, snow covered hill angled at 0 above the horizontal. The ski down the hill a distance du and onto a flat parking lot. The coefficient of friction between the cement in the parking lot and the skis is μk. They move along the parking lot a distance dR before stopping. This is drawn below a. Derive an equation for the skier's speed at the bottom of the hill.. b. Derive an equation for dr, the distance the skier slides into the parking lot before stopping. c. If there was a little friction between the snow and skies, explain how your solution would change. You should not re-solve the problem, just describe how your methods would need to change. dH e dR
1.A weight lifter lifts a 350-N set of weights from ground level to a position over his head, a vertical distance of 2.00m. How much does the weights lifter do, assuming he moves the weights at constant speed? with free body diagram.
A 200 g hockey puck is launched up a metal ramp that is inclined at a 30° angle. The coefficients of static and kinetic friction between the hockey puck and the metal ramp are us 0.40 and uk = 0.30, respectively. The puck's initial speed is 4.9 m/s. What speed does it have when it slides back down to its starting point? 2.8 m/s 4.9 m/s 4.2 m/s 3.5 m/s
1. A mass moving at 1.70 m/s slides down a ramp angled at 30.0° to the horizontal. After the mass has slid a distance L its speed is 2.30 m/s. Find L if the coefficient of friction is 0.46. L = ??? 2.3 m/s 30⁰ 1.7 m/s
A 10 m long vertical cannon is used to accelerate a 1.0 kg ball straight up into air. A constant force of 13.2N is used to access bowling ball length of the canon. what is the ball's approximate velocity as it leaves the canon assuming no energy loss to friction
75. ao A net external force is applied to a 6.00-kg object that is initially at rest. The net force component along the displacement of the object varies with the magnitude of the displacement as shown in the drawing. What is the speed of the object at s = 20.0 m? F cos e 10.0 N 5.00 N 10.0 m 20.0 m
4. A 70 Kg athlete leaps straight up into the air from a trampoline with an initial speed of 7.0 m/s. Take y = 0 to be the position the athlete leaves the trampoline and ignore air resistance. how shoqes di nwob edhW (1 912 a. What is the maximum height the athlete reaches? Step 1) Draw a picture and list the value of all variables at the athlete's starting position and ending position. .£q912 ni nolicups or otni gulą of been woy z9ulev ri telual 10 11J (S 9912 Step 2) Is energy conserved? Yes = write the conservation of energy equation. No write the equation for non- conserved work. 102 (E 9912 nobil yd snob how s Step 3) Plug in values to the equation from step 2 and solve for maximum height. srij 11 m 0.00 to trigisil s of brucny ont moit siqaq to llut 101 Serler abin Toravste srit gnol wor 1010 smit tot svioz uoy tel lliw tens potten b. Solve this problem with kinematic equations and confirm the answers are the same. 0.000,21 A (8 21 (1 q912 Aitnsbl (S q912 smils sris tol svio2 (8…
3.
A 9.50 kg block is at rest on a horizontal floor, and then you pull it with a cord that exerts a tension force of 12.0 N on the block at an angle of 24.0o above the horizontal. The coefficient of kinetic friction between the block and the floor is 0.055. What is the speed of the block 0.85 s after it starts moving? Nothing I do is working! I only have three more tries to get it right and what should be working is not.
A block is sent up an incline with a velocity of 3.51 m/s. Assume there is no friction between the incline and the block. The angle is at an incline of 31.1 degrees with the horizontal. A) How far up the incline does the block go? B) How long does it take to get there? C) What is it's speed when it gets back to the bottom?