In the figure a sled on an inclined plane is dragging by a man. The mass of the sled is 80 kg, the kinetic friction ratio between the sled and the ramp is 0.70, the angle between the ramp and the horizontal is 25, and the angle between the ramp and the rope is 35. What should be the force applied to the sled by the man in order for the sled to continue its motion at a constant speed?

In the figure a sled on an inclined plane is dragging by a man. The mass of the sled is 80 kg, the kinetic friction ratio between the sled and the ramp is 0.70, the angle between the ramp and the horizontal is 25, and the angle between the ramp and the rope is 35. What should be the force applied to the sled by the man in order for the sled to continue its motion at a constant speed?

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 27P: A horse is harnessed to a sled having a mass of 236 kg, including supplies. The horse must exert a...

See similar textbooks

Similar questions

Two children, Raffi and John, sitting on sleds tied together with a massless rope, are being dragged across a frozen river by their playful Siberian husky Rex who is supplying a 112-N horizontal force (Fig. P5.78). The coefficient of friction between the sleds and the ice is 0.08, the combined mass of Raffi and his sled is 42.0 kg, and the combined mass of John and his sled is 51.0 kg. a. Draw a free-body diagram for each of the childsled systems. b. What is the acceleration of the system? c. What is the tension FT in the rope connecting the two sleds? FIGURE P5.78
A horse is harnessed to a sled having a mass of 236 kg, including supplies. The horse must exert a force exceeding 1 240 N at an angle of 35.0 in order to get the sled moving. Treat the sled as a point particle, (a) Calculate the normal force on the sled when the magnitude of the applied force is 1 240 N. (b) Find the coefficient of static friction between the sled and the ground beneath it. (c) Find the static friction force when the horse is exerting a force of 6.20 102 N on the sled at the same angle.
On a horizontal surface with ( µk = 0.25 ), a 7 kg is dragged with a 450 N applied force F due East. a. Draw all forces acting on the moving object, calculate the normal force and the acceleration.
A skydiver reaches a "terminal velocity" of 120 km/h. If the skydiver has a mass of 59.0 kg, what is the magnitude of the upward force on the skydiver due to wind resistance? (Use g = 9.8 m/s2.)
A girl is sledding down a slope that is inclined at 30º with respect to the horizontal. The wind is aiding the motion by providing a steady force of 197 N that is parallel to the motion of the sled. The combined mass of the girl and the sled is 79.1 kg, and the coefficient of kinetic friction between the snow and the runners of the sled is 0.289. How much time is required for the sled to travel down a 164-m slope, starting from rest?
The Omani "Noor Majan" car is of mass (M) kg is going up Jabal Akhdar, at angle with (N) people inside the car each of (mp) kgThe car model provides (L) Newtons of liftand it is accelerating up at (a)m/s^ 2 . The road provides a coefficienct of kinetic friction ( mu k ) . What is the force exerted by the engine? [Hint: This question has no numbers. Your answer needs to be an equation.]
A loaded sled with a weight of 500 N slides down a frictionless incline with an acceleration of 2.0 \frac{m}{s^2}s2m. The angle of inclination is not given. What is the normal force of the slope's surface on the sled? A)489 N b)500 N C)357 N D)291 N
Tim pushes a 195kg lawnmower with a force of 850N at an angle of 35 degrees with respect to the horizontal. If it accelerates along the level grou D at 2.90 m/s2, what is the coefficient of Kinetic Friction between the mower and the ground.
The person in Figure P5.30 weighs 170 lb. As seen from the front, each light crutch makes an angle of 22.0° with the vertical. Half of the person’s weight is supported by the crutches. The other half is supported by the vertical forces of the ground on the person’s feet. Assuming that the person is moving with constant velocity and the force exerted by the ground on the crutches acts along the crutches, determine (a) the smallest possible coefficient of friction between crutches and ground and (b) the magnitude of the compression force in each crutch.
A sled weighing 60.0 N is pulled horizontally across snowso that the coefficient of kinetic friction between sledand snow is 0.100. A penguin weighing 70.0 N rides on the sled, as in Figure P4.86. If the coefficient of static frictionbetween penguin and sled is 0.700, find the maximumhorizontal force that can be exerted on the sled before thepenguin begins to slide off.
A stubborn, 115 kgkg mule sits down and refuses to move. To drag the mule to the barn, the exasperated farmer ties a rope around the mule and pulls with his maximum force of 800 NN. The coefficients of friction between the mule and the ground are 0.75 and 0.51. What is the force of static friction between the mule and the ground?
A rocket-powered car provides a thrust of 250 kN at an angle of 10 degrees below horizontal (so some of the thrust pushes the car down toward the ground). If the car has a mass of 2500 kg and the ground is hard enough to support the vehicle, find the following: a) The normal force exerted by the ground b) The acceleration of the vehicle