A 4830-kg car enters an 7.6-percent downhill grade at a speed of 103 km/h. The driver applies her brakes to bring the car to a speed of 20 km/h in a distance of 0.49 km measured along the road. Calculate the energy loss Q (enter as a positive number) dissipated from the brakes in the form of heat. Neglect any friction losses from other causes such as air resistance. Answer: Q = i kJ

Q: MN m 0.5 m Each ball has a negligible size and their respective mass are 9-kg and 3-kg. Each ball is…

A: Given: mA=9  kg mB=3  kg r=0.5m M=t2+2 V(t=0s)=9m/s   To find: V(t=6s)

Q: The car has a mass of 23 Mg and accelerates at ports 6 m/s, starting from rest. If the drag…

A: Given:Mass of the car, m=2.3 mega gram 1 Mg=103 kgSo, m=2300 kgFd=10v Newtona=6 m/s2t=5 sece=0.68

Q: Determine the force it must exert on the 0.7-kg smooth cylinder. Express your answer to three…

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Q: A 1.28 Mg MINI accelerates at 6 m/s² starting from rest. If the drag resistance on the MINI due to…

A: given Mass of the car is m=1.28 Mg = 1280 kg Acceleration of the car a=6 ms2 Drag force Fd = 10*v N…

Q: gure 200 ft AKK P < -200 ft 1 of 1 - 200 (40 000-x²) x

A: Given,

Q: The work done by a car traveling at a constant speed on a flat road can be computed based on the…

A: (a) Calculate the distance travelled in first 20 s. D = 60*0.447*20…

Q: In 50 seconds, a 3.2-ton vehicle can reach 140 mph from rest. Exclude friction losses while…

A: To find : Determine the engine's out  Given : time t=50sec initial velocity u=0 m/s final velocity…

Q: A 3140-lb car travels up the 4-percent incline shown. The car is subjected to a 70-lb aerodynamic…

A: Given data: ν=66 mi/hrforce=(70+51) lb3140 lb car travels with 4 percent inlcineTo find:constant…

Q: A plow located on the front of a locomotive scoops up snow at the rate of 10 ft^3/s and stores it in…

A: Given data: Rate of snow removal, Q=10 ft3sLocomotive velocity, V=12 ftsSpecific weight of snow, s=6…

Q: The sports car has a mass of 2.0 Mg and accelerates at 6 m/s, starting from rest. (Figure 1) Part A…

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Q: In the figure below, a block slides along a track from one level to a higher level after passing…

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Q: The sports car has a mass of 23 Mg and accelerates at 6 m/s, starting from rest. If the drag…

A:

Q: A 100kg crate is originally at rest and is subjected to two forces. Determine the distance(m) it…

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Q: A van initially at a velocity of 100 km. h-¹ is braking. For a short period of time, the frictional…

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Q: M N m 0.5 m Each ball has a negligible size and their respective mass are 3-kg and 8-kg. Each ball…

A: Given: mA = 3 Kg mB =8 Kg r = 0.5 m M=t2+2 V0=10m/s   To find: The velocity of each ball at t= 7s

Q: A 100kg crate is originally at rest and is subjected to two forces. Determine the distance(m) it…

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Q: A 5kg block is pushed up along the slope as shown. The coefficient of kinetic friction is uk =0.2.…

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Q: A 2kg mass is initially traveling at a velocity of 0.95 m/sec. Kinetic friction coefficient between…

A: Given data, m = Mass of the body = 2 Kg u = Initial velocity of the mass = 0.95 m/s μk = Kinetic…

Q: A 10.1-Mg truck is resting on the deck of a barge which displaces 209 Mg and is at rest in still…

A: Given Data

Q: A happy kangaroo leaps vertically upward at a time t = 0. At time t = 0.50 s the kangaroo is at a…

A:

Q: The 1.7-kg block slides along a smooth plane and strikes a nonlinear spring with a speed of v = 6…

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Q: Determine the normal force the box exerts on the surface when it reaches point B. Neglect friction…

A: Given Data:the mass of the box m= 8Kgthe velocity of the box at point A neglecting the friction and…