Ⓒ Time Left: 00:09:53 The 57.25 kg crate is hoisted up the 0 = 31° incline by the pulley system and motor M. If the crate starts from rest and, by constant acceleration, attains a speed of 8.30 m/s after traveling 4.98 m along the plane, determine the supplied power to the motor if the crate has moved 8 m and the coefficient of kinetic friction between the plane and the crate is μk = 0.3. Neglect friction along the plane. The motor has an efficiency of 0.668. 0° C M

you psush a file acbinet up a rough ramp titled at 10 degreee with horizontak. The file cabinet has a mass 82kg and you are pushing with a 260N force in the direction up along the ramp. The friction force on the cabinet from the ramp is 35N. It's moved 3.00m up along the ramp. whats the workdone by you on the cabinet

A 2.1 x 103 - kg car starts from rest at the top of a 5.0 - m - longdriveway that is inclined at 20.0° with the horizontal. If anaverage friction force of 4.0 x 103 N impedes the motion, findthe speed of the car at the bottom of the driveway.

A frictionless plane is 10.0 m long and inclined at 35.0°.A sled starts at the bottom with an initial speed of 5.00 m/sup the incline. When the sled reaches the point at which itmomentarily stops, a second sled is released from the top ofthe incline with an initial speed vi. Both sleds reach the bottomof the incline at the same moment. (a) Determine the distance that the first sled traveled up the incline. (b) Determinethe initial speed of the second sled.

A traveler pulls on a suitcase strap at an angle of 31.6 degrees above the horizontal. if 566 J of wrok are done by the strap while moving the suitacase a horizontal distance of 23.2m, what is the tenfion in the strap?

"While a roofer is working on a roof that slants at 38.0 ∘∘ above the horizontal, he accidentally nudges his 95.0 NN toolbox, causing it to start sliding downward, starting from rest."   1)If it starts 4.20 mm from the lower edge of the roof, how fast will the toolbox be moving just as it reaches the edge of the roof if the kinetic friction force on it is 22.0 NN?

o pox 2 SCCGIGLSIOU U U 5. A 15 kg block starts from rest starts 4m away from the end of a spring affixed to a 30° incline. ( loni odi to monod orb 2orlonon ri nsdw zod ort lo A) If the kinetic coefficient of friction of the block with the 01 oni incline is 0.3, calculate its velocity when it reaches the siano ori d onob how orl vh2o spring without calculating its acceleration.0od ono on ow ort o2Umoriod B) How much will the spring, with a spring constant of 20 N/m, compress when the block (momentarily) comes to a stop? [Don't forget that as the spring is compressed the gravitational potential energy of the block also changes.] 30°

An 80.0 - kg skydiver jumps out of a balloon at an altitude of1.00 x 103 m and opens the parachute at an altitude of 200.0 m.(a) Assuming that the total retarding force on the diver isconstant at 50.0 N with the parachute closed and constant at3.60 x 103 N with the parachute open, what is the speed ofthe diver when he lands on the ground? (b) Do you think theskydiver will get hurt? Explain. (c) At what height should theparachute be opened so that the final speed of the skydiverwhen he hits the ground is 5.00 m/s? (d) How realistic is theassumption that the total retarding force is constant? Explain.

Assume a 2510 kg truck is accelerating up a hill with an 18 o incline from an initial speedof 8.33 m/s. If the truck reaches a maximum speed of 27.0 m/s and gains an elevation of19.5 m. what is the applied force from the engine?

A stray dog catcher drives 34km east, picks up some dogs, then drives 10km west to drop them off before continuing east for 21km. 30N of force is being applied constantly parallel to the dog catcher's motion. Solve for the work the dog catcher has accomplished.