The engine of a 1000 kg sports car rotates the tires, creating a et forward pushing...
2.) A person is pushing a 750 kg car a distance of 30m with a constant pushing force of 550 N that is parallel to the ground. If the car is accelerated from rest to a speed of 1.5 m/s, find the coefficient of kinetic friction between the tires and the road. Use the Work kinetic energy theorem.
3. An engine exerts a force of 10000 N on a 1000 kg car travelling over a flat road. The force (overcoming friction) accelerates the car from rest such that it travels a distance of 50 m in 5 s Find e. the net acceleration of the car, f. normal force exerted by the road on the car, and g. the coefficient of kinetic friction between the car and the road? 4. A 10 kg block is initially at rest...
A 1500-kg car starts from rest and accelerates uniformly to 18.0 m/s in 12.0 s over a dry concrete road. Assume that kinetic friction remains constant at 400 N during this time. – (a) Find the net work done on the car and the work done by the engine. – (b) How many revolutions does each tire make over the 12.0 s interval? What is the angular speed of the wheels when the car has traveled half the total distance?...
A sports car of mass 1000 kg (including the driver) crosses the rounded top of a hill (radius = 85 m ) at 24 m/s . A) Determine the normal force exerted by the road on the car. B) Determine the normal force exerted by the car on the 80-kg driver. C) Determine the car speed at which the normal force on the driver equals zero.
A 1000 kg sports car accelerates from 0 m/s to 30 m/s in 11. What is the average power of the engine?
A 1000 kg sports car accelerates from 0 m/s to 33 m/s in 12 s.What is the average power of the engine?
A 1000 kg sports car accelerates from 0 m/s to 32 m/s in 11 s. what is the average power of the engine?
A 1000 kg race car starts from rest and reaches a speed of 100 km/h in 20 s. What is the power delivered by the car’s engine? (2 points). A 1 kg mass is released from the top of a smooth slide of height 2m. At the bottom of the slide the mass slides on a horizontal surface and stops at a distance of 5 m. What is the coefficient of kinetic friction of the horizontal surface? (3.5 points). The...
3. During a very quick stop, a car decelerates at 6.2 m/s2. Assume the forward motion of the car corresponds to a positive direction for the rotation of the tires (and that they do not slip on the pavement). a. What is the angular acceleration of its tires in rad/s2, assuming they have a radius of 0.28 m and do not slip on the pavement? b. How many revolutions do the tires make before coming to rest, given their initial...
A car of mass 1000 Kg descends a hill inclined with horizontal by 30°, the car is traveling at 80 km/h is uniformly brought to rest over a distance of 40 m. Calculate using work-energy method the average braking force required. The resistance to the motion is 200 N. 40 0 = 30°