A skydiver of mass 60kg is falling at a terminal velocity of 80m/s. How much power is gravity exerting on the diver? Assume a gravitational acceleration of 10 m/s^2

Q: Suppose 65 passengers with an average mass of 75kg are transported by a ski lift to a height of…

A: Given: The number of passengers: n = 65. The average mass of a passenger: m = 75 kg. The height…

Q: Which has more kinetic energy: a 0.0012 kg bullet traveling at 405 m/s or a 5.3 x 10^7 kg ocean…

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Q: 3An elevator lifts a load of mass 10 kg a distance of 50m in 14 s. Find the work done and the power…

A: Given Data : The mass that the elevator lifts is given as m = 10 Kg. The height by which the load is…

Q: A driving force of 200 N is needed for a car of mass 800 kg to travel along a level road at a speed…

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Q: What average power does a 1,565 kg car need to go from 0 to 12.6 m/s in 6.86 seconds? Assume a…

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Q: What power on the cables does it require to lift a 250-kg elevator cab and 4 passengers each with a…

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Q: What average power is needed to accelerate a 1 kg soccer ball from rest to 36 km/hr in 0.1 seconds?…

A: Given data: Mass (m) = 1 kg Initial velocity (v0) = 0 m/s Final velocity (v) = 36 km/hr Time (t) =…

Q: What average power would a 1500 kg speedboat need to go from rest to 25 m/s in 6 seconds if the…

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Q: A block with a mass of 12.5kg is pulled up a smooth incline that makes an angle of 15.0° with…

A: Given data:   Mass of block (m) = 12.5 kg Inclined angle (θ) = 15.0° Power output (P) = 35 W…

Q: A cheetah can accelerate from rest to 6.4 m/s (about 16 m/h) in 1.2 seconds. How much average power…

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Q: Calculate the power output (in J/s) of a 500-g spider as it walks up a windowpane at 2.3 cm/s. The…

A: The power can be expressed as the ratio of the work done by the object to the time for which the…

Q: What average power is needed to lift a 65-kg vendor vertically upward at a uniform speed of 0.44…

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Q: A 40.0 kg jogger runs up the slope described in the fiqure. She maintains a constant speed of 4.00…

A: Given  Mass of jogger(m) = 40Kg Speed (s) = 4m/s

Q: The power delivered by a constant force is given by P=FO-vO, The power exerted by gravity as it…

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Q: A 56.5-kg person is running and accelerates from 3.67 m/s to 8.29 m/s in 5.67 s. How much power does…

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Q: How much time is required for a elevator to lift a 2000 kg load up 28 m from the ground level, if…

A: Given data: Mass m = 2000 kg Distance from ground level d = 28 m Power P = 13 kW

Q: In 1.62 minutes, a ski lift raises four skiers at constant speed to a height of 146 m. The average…

A: Given information: Here, m is the mass of each ski, h is the height up to which skies are raised in…

Q: Without pedaling, the rider rides down a 3.0% slope with constant speed of 7.0 m/s. With how much…

A: Slope = 3% therefore, θ = Tan-1(0.03) = 1.718oV = 7 msmass (m) = 80 kg

Q: How much work (in J) is required to move a box that weighs 13 kg upward by 65 cm? Use the fact that…

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Q: What is the average power must produce to accelerate car with 1500 kg from rest to the speed 30…

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Q: A warehouse worker uses a forklift to raise a crate of pickles on a platform to a height 3.75 m…

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Q: A car of mass 920.0 kg accelerates away from an intersection on a horizontal road. When the car…

A: mass of car (m) = 920 kg speed (v) = 12.4 msNet power (P) = 5300 W

Q: Suppose a 925-kg car climbs a 2.05° slope at a constant speed of 30.5 m/s.   Calculate the power…

A: Since, the car climbs the slope with a constant velocity, the expression for the power required is,

Q: A toad with mass of 180 g leaps into the air to catch a fly. If the toad's jump was at an angle of…

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Q: A warehouse worker uses a forklift to lift a crate of pickles on a platform to a height 3.75 m above…

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Q: A 1.00 x 10*3 kg elevator car carries a maximum load of 8.00 x 10*2 kg. A constant frictional force…

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Q: car (m = 660.0 kg) accelerates uniformly from rest up an inclined road which rises uniformly, to a…

A: Given Mass of the car is m=660.0 kg Height of the hill is h=39.0 m Final speed of the car is vf=24.9…

Q: A cheetah can accelerate from rest to 7.4 m/s (about 17 m/h) in 1.1 seconds. How much average power…

A: The correct choice of answer is option (a) i.e. 1300 W

Q: Suppose a 975-kg car can produce a useful power output of 42.5 hp (1 hp = 746 W). How long, in…

A: Data Given ,  Mass of the car ( m ) = 975 kg Power of the car ( P ) = 42.5 hp   = ( 42.5 × 746 ) W =…

Q: You reach out of a window 15 m above the ground and toss a ball straight up with a speed of 10 m/s.…

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Q: To pass a slow-moving truck, you want your fancy 1.30 * 103@kg car to accelerate from 13.4 m>s…

A: Let E1 and E2 denote the initial and final kinetic energy of the car, E denote the change in kinetic…

Q: What minimum horsepower must a motor have to be able to drag a 380 kg box along a level floor at a…

A: The frictional force acting between box and floor is, F=μmg             (I)…

Q: The aircraft carrier USS George Washington has mass 1.0 ×108kg. When its engines are developing…

A: Let Pout be the total power output of the engines, P is the power used to push the ship through the…

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

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Q: How much work must you do to push a 11.0 kg block of steel across a steel table (μk=0.6)at a steady…

A: a) The required work done is,

Q: Consider a compact car that is being driven at 88 km/h. The acceleration of gravity is 9.8 m/s. From…

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Q: A small motor runs a lift that raises a load of bricks weighing836 N to a height of 10.7 m in 23.2…

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Q: What is the average power must produce to accelerate car with 1500 kg from rest to the speed 30…

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Q: 12. A person runs up a long flight of stairs in 10 seconds. If the person’s weight is 600 N and the…

A: Given data The time taken by the person is t = 10 s. The person weight is W = 600 N. The vertical…

Q: What is her useful power output if she does 25 pushups in one minute?

A: It is given that,

Q: A crane raises a 200-newton weight to a height of 50 meters in 5 seconds. The crane does work at the…

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Q: A 10,000 W motor operates an elevator weighing 5,000 N. Assuming no frictional losses, how high is…

A: Expression for power P=EPt=mght=Whth=PtW

Q: How much power is required to raise a 30-kg crate a vertical distance of 6m in a time of 4 seconds?…

A: The potential energy of a body is given by PE = mgh, where m = the mass of the body g = acceleration…

Q: A woman uses a pulley and a rope to raise a 20 kg weight to a height of 2 m. If it takes 4 s to do…

A: mass, m = 20 kg  height, h = 2 m  time, t = 4s  The formula for energy is  E = m g h  The power is…

Q: Killer whales are known to reach 32 ft in length and have a mass of over 8,000 kg. They are also…

A: Given, Mass of Shamu(m)= 7.99*10³ kg Initial velocity of Shamu(vi)= 0 m/s Final velocity of…

Q: A toad with mass of 190 g leaps into the air to catch a fly. If the toad's jump was at an angle of…

A: given , mass of the toad , m = 190 g =0.190 Kg Angle with respect to the horizontal , θ = 37∘…

Q: How much work (in J) is required to move a box that weighs 18 kg upward by 35 cm? Use the fact that…

A: Given, Mass  of the box m = 18 Kg Upward distance h = 35 cm = 0.35 m Acceleration due to gravity g =…