A 2500 kg car is accelerated from rest to 20.0 m/s on a distance of 120.0m. What force acted on the car during this motion?
A 2500 kg car is accelerated from rest to 20.0 m/s on a distance of 120.0m....
A 1300-kg car, initially at rest, is initially accelerated at 4.9m/s2. After the car moves 550m, the engine is cut off. The car then moves a distance of 1230 before coming to a stop. Assume the road to be level and that g = 10 N/kg. a) What is in m/s, the magnitude of the velocity of the car at the end of the first 550m? b) What is in m/s2, the magnitude of the acceleration of the car while...
A 75.0 kg 0erson is riding in a car moving at 20.0 m/s when the car runs into a pillar. The person hits the car's airbag, which compresses over 0.015 s. The person comes to rest. A) what is the magnitude of the momentum of the person riding in the car before the collision? B) What is the average force (magnitude and directions) on the person in the car from the airbag during the collision? Assume that the car was...
11. A 2000-kg car is accelerated from 0 m/s to 25 m/s in 8 seconds. a. What is the driving force required to accelerate the car? What is the maximum power output from the engine? b. If the engine efficiency is 40% , what is the maximum input power to the engine? c.
A 2180-kg car is slowed down uniformly from 24.6 m/s to 5.2 m/s in 3.32 s. (a) What is the magnitude of the average total force acted on the car during this time?
calculate the distance required for a 1700 kg car to come to rest from a speed of 35 m/s when 2900 N of force is applied by the brakes
A 1000-kg car is accelerated from rest to 85 km/h in 10 s. Assuming that no mass is lost and the car accelerates on a flat, horizontal surface, what is the change of the total energy of the car? How much power is required to change this total energy? Would the total energy change and power required change if it were to accelerate in 5 s?
A 1200 kg pickup truck accelerates from rest to 20.0 m/s in 8.00 s along a flat roadway. What net horizontal force does the pavement exert on the tires of the truck?
A mechanic pushes a 2.60 ✕ 103-kg car from rest to a speed of v, doing 4,770 J of work in the process. During this time, the car moves 20.0 m. Neglecting friction between car and road, find v and the horizontal force exerted on the car. (a) the speed v m/s (b) the horizontal force exerted on the car (Enter the magnitude.) N
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.
In the figure, a 2.6 kg block is accelerated from rest by a
compressed spring of spring constant 660 N/m. The block leaves the
spring at the spring's relaxed length and then travels over a
horizontal floor with a coefficient of kinetic friction
?k = 0.272. The frictional force stops the
block in distance D = 7.9 m. What are (a)
the increase in the thermal energy of the block
In the figure, a 2.6 kg block is accelerated from...