Consider a car with mass M. If the car has an initial speed of vo and...
Consider a car with mass M. If the car has an initial speed of vo and a maximum braking force of Fb, write an expression for the stopping distance, i.e. the distance needed to stop if the full braking force is applied.Calculate the stopping distance for M = 1250 kg, vo = 14.0 m/s, and Fb = 2580 N.
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Consider a car with mass M. If the car has an initial speed of
vo and...
A car of mass M moves with an initial speed of vo on a straight horizontal...
A car of mass M moves with an initial speed of vo on a straight horizontal road. The caris brought to rest by braking in such a way that the speed of thecar is given as a function of time t by v = √(vo^2-(Rt/M)) A. Develop an equation that expresses the time rate of changeof kinetic energy. B. Determine the time T it takes to bring the car to acomplete stop. C. Develop an equation for the acceleration of...
a car is traveling at a constant speed of Vo on a straight, level road. After...
a car is traveling at a constant speed of Vo on a straight, level road. After the brakes are applied at t=0 seconds, the motion can be approximated by: x=t^3/100-t^2 +17t where x is the distance traveled in meters and t is the time in seconds. Determine: A the initial velocity (Vo), B. the time required for the car to stop, C. The distance required for the car to stop, and D. The maximum deceleration during braking.
A car of mass m, traveling at speed v, stops in time t when maximum braking...
A car of mass m, traveling at speed v, stops in time t when maximum braking force is applied. Assuming the braking force is independent of mass, what time would be required to stop a car of mass 2m traveling at speed v?
(a) Calculate the force needed to bring a 900 kg car to rest from a speed...
(a) Calculate the force needed to bring a 900 kg car to rest from a speed of 90.0 km/h in a distance of 100 m (a fairly typical distance for a nonpanic stop). N (b) Suppose instead the car hits a concrete abutment at full speed and is brought to a stop in 2.00 m. Calculate the force exerted on the car and compare it with the force found in part (a), i.e. find the ratio of the force in...
A runaway train car that has a mass of 14500 kg travels at a speed of...
A runaway train car that has a mass of 14500 kg travels at a speed of 5.8 m/s down a track. Randomized Variables: m = 14500 kg, v = 5.8 m/s, F = 1250 N Part (a) What is the time required for a force F to bring the car to rest, expressed in terms of m, v, and F? Part (b) Compute this time, in seconds, for a force of 1250 N.
A car that weighs 1.4×104 N is initially moving at a speed of 50 km/h when...
A car that weighs 1.4×104 N is initially moving at a speed of 50 km/h when the brakes are applied and the car is brought to a stop in 15 m. Assuming that the force that stops the car is constant, find the magnitude of that force. Incorrect. Tries 5/20 Previous Tries Find the time required for the change in speed. Tries 0/20 If the initial speed is, instead, twice as great, and the car experiences the same force during...
9. A car moving initially with a speed of S m/s brakes to a stop in...
9. A car moving initially with a speed of S m/s brakes to a stop in 10 s. The average braking force is 700 N. Find mass of the car.
A driver coasts down a hill 200 m high with initial speed vo 35 m/s. The...
A driver coasts down a hill 200 m high with initial speed vo 35 m/s. The road has friction that results in a negative work -1.7 x 10° J. The effect of this is that the total initial energy is reduced by this amount by the time the car reaches the bottom of the hill. Calculate the speed of the car when it reaches the bottom of the hill. The mass of driver and passenger is 1750 kg 59.3 m/s...
The driver of a car of mass M which is moving along a straight road with...
The driver of a car of mass M which is moving along a straight road with initial speed v0 sees a deer in her headlights, and reacts quickly, lifting her foot of the gas and applying the brake pedal with maximum force. The anti-lock brakes cause the largest possible static friction force to be applied on the tires by the road, which continue to roll so the car does not skid. The coefficient of static friction between the tires and...
(a) Calculate the force needed to bring a 1050 kg car to rest from a speed...
(a) Calculate the force needed to bring a 1050 kg car to rest from a speed of 95.0 km/h in a distance of 115 m (a fairly typical distance for a nonpanic stop). (b) Suppose instead the car hits a concrete abutment at full speed and is brought to a stop in 2.00 m. Calculate the force exerted on the car and compare it with the force found in part (a), i.e. find the ratio of the force in part(b)...
9. A car moving initially with a speed of S m/s brakes to a stop in 10 s. The average braking force is 700 N. Find mass of the car.
A driver coasts down a hill 200 m high with initial speed vo 35 m/s. The road has friction that results in a negative work -1.7 x 10° J. The effect of this is that the total initial energy is reduced by this amount by the time the car reaches the bottom of the hill. Calculate the speed of the car when it reaches the bottom of the hill. The mass of driver and passenger is 1750 kg 59.3 m/s...
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