, 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?

### Other questions on the subject: Physics

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.
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?