(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 part(b) to the force in part(a). (force in part (b) / force in part (a))
Concept- use work energy theorem to find the force required when change in kinetic energy and distance is given,
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(a) Calculate the force needed to bring a 900 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)...
Calculate the force (in N) needed to bring a 1100 kg car to rest from a speed of 95.0 km/h in a distance of 100 m (a fairly typical distance for a non-panic 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). force in (b) force in (a)
A 925-kg pickup slows to rest from a speed of 77.5 km/h in a distance of 145 m. Presume the pickup is initially traveling in the positive direction. Part (a) If the brakes are the only thing making the pickup come to a stop, calculate the force (in newtons, in a component along the direction of motion of the pickup) that the brakes apply on the pickup. Numeric : A numeric value is expected and not an expression. Fb =...
QUESTION 1 15 points Save An Calc?late the force (in N) needed to bring a 1000 kg car to rest from a speed of 90.0 km/h in a distance of 115 m (a fairly typical distance for a non-panic stop).
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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
2. A car moves along anx-axis through a distance of 900 m, starting from rest (at r-0 m) and stopping at x-900 m. It accelerates at +6 m/s through first 10 s of time. Then, through the remaining part of that distance, it slows down with constant acceleration until it stops. What are the: (a) car's maximum speed? (b) distance traveled during the first 10 s of time? (c) acceleration through the remaining part of the distance? (d) time elapsed...