sled of 50 kg mass moves along a smooth horizontal surface at 7 m/s. The sled encounters a rough spot that exerts a force of -90 Nt on the sled.  Calculate: a) What is the acceleration of the sled? b) Calculate how much work is done by the frictional force on the sled if the patch is 15 m in length. c) What is the sled's final velocity as it leaves the rough spot?

Q: A- A kg sled is pulled across level snow with a force of 225N on a rope that is 35 degrees above the…

A: Required : Work done, Power.

Q: A graph of the force on an object as a function of its position is shown in th Determine the amount…

A: Work done:- We know that the definition of the work done is given as  The work done by the force is…

Q: A horizontal force of 150 N is used to push a 45.0-kg packing crate a distance of 7.05 m on a rough…

A:

Q: Spiderman, whose mass is 80.0 kg, is dangling on the free end on the 12.0-m long rope, the other end…

A: Given that:- Mass of Spiderman=80kg

Q: Joe pushes a box rightward with a force of 3 N, causing it to slide 2 m across the floor at a…

A:

Q: 5.5. A child pulls a sled across rocky ground at a constant speed by using a 18 N force to pull the…

A:

Q: Spiderman, whose mass is 80.0 kg, is dangling on the free end on the 12.0-m long rope, the other end…

A:

Q: • A 111-kg seal at an amusement park slides from rest down a rampinto the pool below. The top of the…

A:

Q: Adisa pulls a 35.0-N crate up a 4.00-m-long inclined plane at a constant velocity. If the plane is…

A: Given: Weight of crate = 35.0 N. Length of inclined plane = 4 m. Angle of Inclined plane = 39.0 ̊.…

Q: An Eskimo returning from a successful fishing trip pulls a sled loaded with salmon. The total mass…

A: Given: Total mass of sled and salmon = 50 kg Force exerts by Eskimo, F = 1200 N Displacement, S = 5…

Q: force of 50 N is used to move a 4-kg block in an inclined surface. If the coefficient of kinetic…

A: Given Applied force = F = 50 N Coefficient of kinetic friction = 0.25 Mass of block = 4 kg…

Q: A weight lifter lifts a 340-N sat of waights from ground level to a position over his head, a…

A: The workdone in lifting the object.given,weight of object(w)=340 Nvertical height(h)=2.35 m

Q: A child is pulling a little red wagon along the side walk. She pulls with a 34 N of force at an…

A: Answer:-  Given  Force (F) = 34 N  Angle (A) = 28o Distance (S) = 23 m  We know that  Work done (W)…

Q: Gunther froze Ice King into a 100.-kg block of ice. The block then slides along a mountain slope…

A:

Q: A 52 kg woman steps onto an up-going escalator wyhich bas an incline of 320 with respect to…

A:

Q: A crane (il) lifts a plate of blocks at a construction site in Khor Bamba ( ) in 3 stages using a…

A: m=Mass of plate=4.4 Ton=4.4×103 kgg=Acceleration due to gravity=9.8 m/s2h=Height to which the plate…

Q: y0=30°

A:

Q: here is a diagonal force of 50 N acting on a box. It’s components, a vertical force of 30 N, and a…

A: Given,  a diagonal force of F = 50 N acting on a box. It’s components, a vertical force of Fy = 30…

Q: Spiderman, whose mass is 74.0 kg, is dangling on the free end of a 12.2-m-long rope, the other end…

A: The work done by the gravitational force on the spider man in this maneuver is Wg=mg∆h=mgl-lcosθ…

Q: A woman jumps from a high wall and lands in soft sand. The sand exerts an average upward force of…

A: Given: The force is 50000 N. The sinking in the sand is 5.0 cm.

Q: 13. •• IP To clean a floor, a janitor pushes on a mop handle with a force of 50.0 N. (a) If the mop…

A: Given data: The force applied is F=50 N. The angle with horizontal is θ=55°. The distance traveled…

Q: A 430g book is dropped froma height of 1.9m. What is the kinetic energy of the book at the moment it…

A: Kinetic energy gained equals the change in potential energy. Ekinetic=Utotal-Uhalfway=mgh-mgh2=mgh2

Q: ngling on the free end on the 12.0-m long rope, the other end of which is fixed to a tree limb…

A: We know that the formula of the work done is given as ' W = F ds cosθ where W is the work done F is…

Q: A 65.0-kg file cabinet of is sliding down a rough ramp for a distance of 5.00 m as shown. The…

A:

Q: A boy pulls a 15-lb sled 50 ft along a horizontal surface at a constant speed. What work does he do…

A: Given data: Mass of sled is, m=15 lb=15×0.45=6.75 kg. Distance travelled by sled is, s=50…

Q: A wowan jumps from a high wall and lands in soft sand. The sand exerts an average upward force of…

A: Work done by the sand is the product of the force on woman by the sand times the displacement of the…

Q: A net force of 70 N accelerates a 3-kg mass over a distance of 12m. a. What is the work done by…

A: (given)        Net force = 70 N Mass of body = 3 kg         Distance =12 m Work done =Force×distance…

Q: An 85 kg mountaineer is reaching the top of Mt. Fuji that is 3.76 km high. The mountain makes a…

A: Given that, Mass of a mountaineer, m = 85 kg The mountaineer is reaching the top of Mt. Fuji that is…

Q: A person carries a 35.0 N rock through the path shown in the figure, starting at A point  and ending…

A: The work done by gravity is independent of the path, it only depends on the initial and the final…

Q: 2. Deniz slides a 1 kg toy for 3 m along the flor to his sister Derya. The toy is moving at 4 m/s…

A: Given: mass of toy, m = 1 kg initial velocity of toy, u = 4 m/s final velocity of toy, v = 2 m/s…

Q: Question: How much work did friction do on the book? Information: The book from problem 1 is then…

A:

Q: During a tug-of-war match, team A pulls on team B by applying a force of 1100 N to the rope between…

A:

Q: A child pulls a sled along level ground by exerting a force of 30 pounds on a rope that makes an…

A: force, F = 30 pounds  Angle, A = 35 degree  Distance, d = 200 feet

Q: Sam, whose mass is 75 kg , straps on his skis and starts down a 50 mm -high, 20∘frictionless slope.…

A: The energy possessed by an object which is at a height h from the ground is known as the…

Q: the total work is done on Anna

A:

Q: The velocity of a body of mass 36 kg increases from 5 m/s to 20 m/s in a distance of A m. What is…

A: According to the work energy theorem, the  Wok done  = change in kinetic energy

Q: A woman jumps from a high wall and lands in soft sand. The sand exerts an average upward force of…

A: Newton's third law of motion states that every force has an equal and opposite reaction to the body.…

Q: 2 kg mass is projected down a rough circular track (R = 2m) as shown. The speed of the mass at point…

A:

Q: After hitting a long fly ball that goes over the right fielder's head and lands in the outfield, the…

A: After hitting the third base and player comes to rest due to friction the following consideration…

Q: A 65.0-kg file cabinet of is sliding down a rough ramp for a distance of 5.00 m as shown. The…

A: