A 900-kg car cruising at a constant speed of 60 km/h is to accelerate to 100 km/h in 4 s. The additional power needed to achieve this acceleration is (a) 56 kW (b) 222 kW (c) 2.5 kW (d) 62 kW (e) 90 kW

Q: Consider a 1,492 kg car cruising at constant speed of 59 km/h. Now the car starts to pass another…

A: Given,Mass of car m=1,492 kg initial speed u=59 km/hru=59 km/hr×518m/s1km/hr=16.39 m/scar has to…

Q: A 1,505 kg car starts at rest and speeds up to 4.2 m/s with a constant acceleration. If the car…

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Q: A skier of mass 65 kg is pulled up a slope by a motor-driven cable. (a) How much work is required…

A: Given:-  mass of the skier m= 65 kg  height h= 85 m  slop is θ=30° The speed of the skier is v= 2.2…

Q: 40. A 1500 kg car accelerates from 0 to 25 m/s in 7.0 s. What is the average power delivered by the…

A: here we have to apply work energy theorem

Q: A skier of mass 64 kg is pulled up a slope by a motor-driven cable. (a) How much work is required to…

A: Given:Mass of the skier, m = 64 kgSlope = 30 degreesConstant velocity of the skier upto the slope, v…

Q: A certain automobile having mass 1000 kg climbs an inclined road with a constant 32 m/s speed. If…

A: Mass of the car is m = 1000 kg velocity of the car is is v = 32 m/s Angle of inclination of the road…

Q: Your job is to lift 30-kg crates a vertical distance of 0.90 m from the ground onto the bed of a…

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Q: A 520-kg dragster accelerates from rest to a final speed of 105 m/s in 390 m, during which it…

A:

Q: A car could accelerate from rest to 60 mi/hr (27 m/sec) using a 302 V8 in a time of 1.2 sec.  If the…

A: solution

Q: A car weighing 500 kg moving against a resistance of 500 N, accelerates from rest to 20 m/s in 100…

A:

Q: A 500-kg dragster accelerates from rest to a final speed of 110 m/s in 400 m (about a quarter of a…

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Q: A teenager is taking a 'Bird' scooter out for a joyride. He decided he wants to take the scooter to…

A: Given- mass of boy , m= 65 kg  Height of hill , h = 30 m As boy starts from rest , hence his initial…

Q: All birds, independent of their size, must maintain a power output of 10–25 watts per kilogram of…

A: Minimum power output per kg required for the bird to fly =10 W/kg Maximum power output per kg…

Q: A car accelerates uniformly from rest. Ignoring air friction, when does the car require the greatest…

A: Power is given as, Where, P = power, F = force, v = velocity.

Q: If a 1300 kg car can accelerate from 30 km/h to 60 km/h in 3.9 s , how long will it take to…

A: Mass of car, m = 1300 kg Velocities are,  v1 = 30 km/h = 30*(1000m/3600s) => v1 = 8.33 m/s v2 =…

Q: A bag of wheat weight 290 kg .To what height should it be raised so that potential energy is 7680 J?…

A: Given data :  Potential energy  =  7680 J  Mass   =  m  Acceleration  due to gravity  =  g        To…

Q: When its 75 kW (100 hp) engine is generating full power, a small single-engine airplane with mass…

A: given,power =75kW(100hp)mass M =75kgvelocity =2.5m/s

Q: how much power in watts is required to accelerate a 1200 kg car from rest to 16 m/s in 8 seconds…

A: Solution: Given: m = mass of car = 1200 kg u = initial speed of car = 0 m/s v = final speed of car =…

Q: 19. If a ski lift raises 100 passengers averaging 660 N in weight to a height of 150 m in 60.0 s, at…

A: average weight of a passenger= 660 N Total weight lifted= 100×660= 66000 N Height H= 150 m time…

Q: A 1.50 x 103-kg car starts from rest and accelerates uniformly to 16.9 m/s in 11.6 s. Assume that…

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Q: A car accelerates uniformly from rest to 24.2 m/s in 8.46 s along a level stretch of road. Ignoring…

A: The initial velocity of car = 0 m/s.The final velocity = 24.2 m/s.The time taken  by the car to…

Q: If a 1300 kg car can accelerate from 30 km/h to 65 km/h in 4.0 s , how long will it take to…

A: Given value --- mass = 1300 kg. car can accelerate from 30 km/h to 65 km/h in 4.0 s . We have to…

Q: When an automobile moves with constant speed down a highway, most of the power developed by the…

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Q: Consider a 1400-kg car cruising at constant speed of 70 km/s. Now the car starts to pass another…

A: The power required is the ratio of the work that must be done to time and the work done will be…

Q: A skier of mass 61 kg is pulled up a slope by a motor-driven cable. (a) How much work is required to…

A: a) Calculate the height through which the mass will rise. Calculate the work to pull the mass.

Q: A four-horse carriage is accelerating by 6 m/s every three (3) seconds, carrying a total load…

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Q: A 1000 kg car is travelling on a road with friction coefficient 15%. How much is the engine power…

A: Data Given ,  Mass of the car ( m ) = 1000 kg Friction coefficient ( µ ) = 0.15  Velocity ( v ) = 15…

Q: A car accelerates uniformly from rest to 29.7 m/s in 8.07 s along a level stretch of road. Ignoring…

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Q: The cheetah is one of the fastest-accelerating animals, because it can go from rest to 32.3 m/s 5.37…

A: The final velocity of the cheetah (Vfinal)=32.3 m/s Taken time (t)=5.37 s.mass of the cheetah (m)=…