2) A large cube of mass 25 kg (where each side is 40 meters long) is being accelerated across a horizontal frictionless surface by a horizontal force, P = 58 N, A small cube of mass 4 kg is in contact with the front surface of the large cube and is sliding downward towards the frictionless surface as shown below:

2) A large cube of mass 25 kg (where each side is 40 meters long) is being accelerated across a horizontal frictionless surface by a horizontal force, P = 58 N, A small cube of mass 4 kg is in contact with the front surface of the large cube and is sliding downward towards the frictionless surface as shown below:

Name: Please show step-by-step and free body diagram of each mass 2) A large
Uploaded: 2024-03-20T06:57:57.000Z
Channel: Bartleby
Description: Please show step-by-step and free body diagram of each mass 2) A large cube of mass 25 kg (where each side is 40 meters long) is being accelerated across ahorizontal frictionless surface by a horizontal force, P = 58 N, A small cube of mass 4 kg is i

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter4: Newton's Laws Of Motion

Section: Chapter Questions

Problem 77AP: A boy coasts down a hill on a sled, reaching a level surface at the bottom with a speed of 7.00 m/s....

See similar textbooks

Similar questions

A 65-kg person jumps from the first floor window of a burning building and lands almost vertically on the ground with a horizontal velocity of 3 m/s and vertical velocity of -9 m/s. Upon impact with the ground he is brought to rest in a short time. The force experienced by his feet depends on whether he keeps his knees stiff or bends them. Find the force on his feet in each case. a. First find the impulse on the person from the impact on the ground. Calculate both its magnitude and direction. b. Find the average force on the feet if the person keeps his leg stiff and straight and his center of mass drops by only 1 cm vertically and 1 cm horizontally during the impact. c. Find the average force on the feet if the person bends his legs throughout the impact so that his center of mass drops by 50 cm vertically and 5 cm horizontally during the impact. d. Compare the results of part (b) and (c), and draw conclusions about which way is better. You will need to find the time the impact lasts by making reasonable assumptions about the deceleration. Although the force is not constant during the impact, working with constant average force for this problem is acceptable.
Professional Application A car moving at 10 m/s crashes into a tree and stops in 0.26 s. Calculate the force the seat belt exerts on a passenger in the car to bring him to a halt. The mass of the passenger is 70 kg.
Consider a large truck carrying a heavy load, such as steel beams. A significant hazard for the driver is that the load may slide forward, crushing the cab, if the truck stops suddenly in an accident or even in braking. Assume, for example, that a 10 000-kg load sits on the flatbed of a 20 000-kg truck moving at 12.0 m/s. Assume that the load is not tied down to the truck, but has a coefficient of friction of 0.500 with the flatbed of the truck. (a) Calculate the minimum stopping distance for which the load will not slide forward relative to the truck. (b) Is any piece of data unnecessary for the solution?
Show that the acceleration of any object down an incline where friction behaves simply (that is, where fk=kN ) is a=g(sinkcos). Note that the acceleration is independent of mass and reduces to the expression found in the previous problem when friction becomes negligibly small (k=0).
A boy coasts down a hill on a sled, reaching a level surface at the bottom with a speed of 7.00 m/s. If the coefficient of friction between the sleds runners and the snow is 0.050 0 and the boy and sled together weigh 600. N, how far does the sled travel on the level surface before coming to rest?
While jumping on a trampoline, sometimes you land on your back and other times on your feet. In which case can you reach a greater height and why?
A person steps horizontally off the roof of a single-story house that is 3.1 m high. When his feet hit theground below, he bends his knees such that his torso decelerates over a distance of 0.65 m before coming to astop. If the mass of his torso is 50 kg, what is the average net force exerted on his torso over this distance?
Two stationary hockey players push each other so that they move in opposite directions. One player has a mass of 35.6 kg and a speed of 2.42 m/s. What is the mass of the other player if her speed is 3.25 m/s? Neglect friction.
What average force is required to stop a 1400 kg car in 8.0 s if the car is traveling at 85 km/h? Express your answer to two significant figures and include the appropriate units. Enter positive value if the direction of the force is in the direction of the initial velocity and negative value if the direction of the force is in the direction opposite of the initial velocity.
To make an object start moving on a surface with friction, will it usually require more, less or the same amount of force as to keep it moving on the same surface?
A 101 kg of ice is kicked so that it will have an initial velocity of 13 m/sec. If the coefficient of friction between the floor (horizontal) and the block of ice is 0.1, find the total distance that the block will travel in meters before coming back to rest.
At the scene of an accident, two traffic experts appear to determine which of the drivers was at fault considering that it was a highway where the speed limit is 80 km / h. The data collected in the field indicate that the vehicles stuck and skidded together a length of 25 m on the pavement whose dynamic friction coefficient is μk = 0.30. Considering that the masses of vehicles A and B are 2300 kg and 1500 kg, respectively, specify which of the cars was speeding at the moment of impact and by how much it exceeded the speed limit. Express your result in km / h for the purposes of the expertise.