A sled is being pulled by a dog on a horizontal surface. Are the following statements...
A skier on a slope inclined at 4.7° to the horizontal pushes on ski poles and starts down the slope. The initial speed is 2.7 m/s. The coefficient of kinetic friction between skis and snow is 0.11. Determine how far the skier will slide before coming to res
A sled weighing 60.0 N is pulled up a snowy hill inclined at 10 degrees to the horizontal at a constant speed so that the coefficient of kinetic friction between sled and snow is 0.070. A penguin weighing 70.0 N rides on the sled. If the coefficient of static friction between penguin and sled is 0.950, find a). the force of friction between the sled and the snow, b). the force of static friction between the penguin and the sled,...
A skier is pulled up a slope at a constant velocity by a tow bar. The slope is inclined at 25.2 ° with respect to the horizontal. The force applied to the skier by the tow bar is parallel to the slope. The skier's mass is 46.5 kg, and the coefficient of kinetic friction between the skis and the snow is 0.158. Find the magnitude of the force that the tow bar exerts on the skier.
A heavy sled is being pulled by two people as shown in the figure. The coefficient of static friction between the sled and the ground is As-0603, and the kinetic friction coefficient is μ< : 0.411. The combined mass of the sled and its load is m-351 kg. The ropes are separated by an angle φ = 25°, and they make an angle θ = 31.1° with the horizontal. Assuming both ropes pull equally hard, what is the minimum rope...
A 66 kg water skier is being accelerated by a ski boat on a flat ("glassy") lake. The coefficient of kinetic friction between the skier's skis and the water surface is μk = 0.28.What is the skier's acceleration if the rope pulling the skier behind the boat applies a horizontal tension force of magnitude FT = 240 N to the skier (θ=0∘)? Express your answer to two significant figures and include the appropriate units. a A =???? What is the...
All problems must include: a sketch, a freebody diagram (or more than one if necessary), and a list of knowns and unknowns for full credit. A large pack of snow of mass m sits at the top of a trail at a ski resort. Friction keeps the snow pack in place, but when it starts to get hotter out the coefficient of friction changes and the snow will slide down the mountain in an avalanche. If the slope of the...
1. A 45kg block is being pulled at a 25 degree angle on a
surface by a force F. Assume that the static friction (μstatic) of
the surface is 0.1 and the kinetic friction (μkinetic) is 0.03.
Draw a free body diagram showing all forces acting on the block,
and determine the minimum force F to get the block moving. What is
the magnitude of the blocks acceleration once it starts to move if
the force is maintained?
64G, А
a)A heavy sled is being pulled by two people, as shown in the figure. The coefficient of static friction between the sled and the ground is ?s=0.643 , and the kinetic friction coefficient is ?k=0.459 . The combined mass of the sled and its load is ?=306 kg . The ropes are separated by an angle ?=26° , and they make an angle ?=32.7° with the horizontal. Assuming both ropes pull equally hard, what is the minimum rope tension required...
Suppose a block of mass m is placed onto a horizontal surface and a horizontal pulling force P is applied to the block. Draw a free-body diagram for the block and apply Newton’s 2nd law to the block. >> Suppose that a horizontal applied force P begins pulling on the block with a steadily increasing force, starting from an applied force of zero. Once static friction is overcome, the applied force is quickly adjusted such that the block moves with...
2. A crate is pushed horizontally at an angle of 20° across a rough surface as shown. The mass of the crate is 55 kg and the coefficient of kinetic friction M = 0.35. a) What applied force is required to keep the box moving at a constant acceleration of 3m/s2 ? b) What applied force is needed to keep the box moving at a constant speed, that is, no acceleration? (2 pts.) 3. A 60-kg skier starts from rest...