Physics, 12.11.2019 03:31, leianagaming

# Ateam of dogs accelerates a 290kg dogsled from 0 to 6.0m/s in 3.0 s. assume that the acceleration is constant. part awhat is the magnitude of the force exerted by the dogs on the sled? part bwhat is the work done by the dogs on the sled in the 3.0 s? part cwhat is the instantaneous power of the dogs at the end of the 3.0 s? part dwhat is their instantaneous power at 1.5 s?

Answers: 2

Physics, 10.07.2019 05:30, khushailawadip9dkn2

Ateam of eight dogs pulls a sled with waxed wood runners on wet snow ( the dogs have average masses of 19.0 kg, and the loaded sled with its rider has a mass of 210 kg. (a) calculate the magnitude of the acceleration starting from rest if each dog exerts an average force of 185 n backward on the snow. (b) what is the magnitude of the acceleration once the sled starts to move? (c) for both situations, calculate the magnitude of the force in the coupling between the dogs and the sled.

Answers: 3

Physics, 25.07.2019 20:40, rm64789

Drag race tires in contact with an asphalt surface probably have one of the highest coefficients of static friction in the everyday world. given a car with a mass of 3000kg: assuming a constant acceleration and no slipping of tires, what acceleration does the car experience if it covers a quarter mile in 6.0 s? (1 mi = 1609 m) what is the coefficient of static friction? (assume the magnitude of the force that accelerates the car is approximately equal to the magnitude of the frictional force between the tires and the road.) did you need the mass to calculate the coefficient of friction? why or why not?

Answers: 1

Physics, 10.10.2019 23:00, swagluxry

Abox of mass 3.1kg slides down a rough vertical wall. the gravitational force on the box is 30n . when the box reaches a speed of 2.5m/s , you start pushing on one edge of the box at a 45° angle (use degrees in your calculations throughout this problem) with a constant force of magnitude fp = 23n . there is now a frictional force between the box and the wall of magnitude 13n . how fast is the box sliding 2.0s after you started pushing on it? assuming that the angle at which you push on the edge of the box is again 45∘, with what magnitude of force fp should you push if the box were to slide down the wall at a constant velocity? note that, in general, the magnitude of the friction force will change if you change the magnitude of the pushing force. thus, for this part, assume that the magnitude of the friction force is f=0.516fp.

Answers: 2

Physics, 30.10.2019 20:31, praptibaral70

6. a team of eight dogs pulls a sled with waxed wood runners on wet snow ( the dogs have average masses of 19.0 kg, and the loaded sled with its rider has a mass of 210 kg. (a) calculate the magnitude of the acceleration starting from rest if each dog exerts an average force of 185 n backward on the snow. (b) what is the magnitude of the acceleration once the sled starts to move? (c) for both situations, calculate the magnitude of the force in the coupling between the dogs and the sled.

Answers: 2

Ateam of dogs accelerates a 290kg dogsled from 0 to 6.0m/s in 3.0 s. assume that the acceleration is...

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