A 55 kg motorcyclist is flying through the air at 72 km/h at the apex of the jump 8.3 m above the ground. Find his landing speed assuming energy is conserved.

Q: A 1.00 m long rod weighing 300 g hangs from the ceiling. For how much does its potential energy…

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Q: a 75 kg cross country skier is climbing a 3 degree slope at a constant speed of 2.0 m/s and…

A: The mass m=75kg  The speed =2.0m/s To find the final velocity on the level ground

Q: A 67 kg yak has an average power output of 200 W. How long can a yak climb a 3km high mountain?…

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Q: A 15 × 10² g ball is thrown straight up in the air with an initial upward velocity of 25 m s-'.…

A: Given  Mass of ball m=1500g=1.5kg Initial speeed v=25m/s

Q: Starting a race, a 68.2-kg sprinter runs the first 7.04 m in 1.60 s, starting from rest and…

A: Given: The mass (m) of the sprinter is 68.2 Kg. The distance (S) covered by the sprinter is 7.04 m.…

Q: From the figure, the system starts at rest with the spring unextended. Taking m=0.10, when the…

A: Work done by force F on spring is W=12kx2…

Q: A bag of wheat weight 320 kg. To what height should it be raised so that potential energy is 6790J?…

A: Given data :                Acceleration due to gravity    =   g                  Potential energy…

Q: A 50 kg diver stands on top of a cliff with a total energy of 80,000 J.  What is the approximate…

A: To solve the given question, we will use the conservation of energy. Initial potential energy…

Q: Assume g= 9.8 m/s² near the surface of the Earth. Traveling in a mountainous area, a bus of mass 3…

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Q: From what height would an automobile have to fall to gain the kinetic energy equivalent to what it…

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Q: A 20.0 kg crate, initially at rest, slides down a ramp 2.0 m long and inclined at an angle of 20°…

A: solution as

Q: A toad with mass of 188 g leaps into the air to catch a fly. If the toad's jump was at an angle of…

A: Given: Toad's mass, m=188 g=0.188 kg Toad's jumping angle w.r.t horizontal, θ=35° Initial velocity,…

Q: A 1.5 kg object slides across a horizontal surface with an initial speed of 6.84 m/s. If the object…

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Q: Using the principle of conservation of mechanical energy, calculate the maximum height achieved by a…

A: Weight of ball = 5 N Velocity of ball = 12 m/s Maximum height =?

Q: A fully loaded, slow-moving freight elevator has a cab with a total mass of 1600 kg, which is…

A: Given:-         Total mass  M=1600 kg        Distance to cover  d=39 m        Time taken  t=2.2…

Q: A bag of wheat weight 330 kg .To what height should it be raised so that potential energy is 7800J?…

A: Given data:  Mass (m) = 330 kg Potential Energy (PE) = 7800 J g = 9.8 m/s2 Required: Height (h)

Q: A 150 kg yak has an average power output of 120 W. How long can a yak climb a 1.2 km high mountain?

A: Given, Mass of the yak (m) = 150 kg  Power output (p) = 120 Watt. Height of the mountain (h)= 1.2 km…

Q: A 240-kg roller coaster reaches the top of the steepest hill with a speed of 5.60 km/h. It then…

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Q: A 60 kg woman whose average power is 30 W can climb a mountain 2.0 km high in

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Q: At what speed does a 1000 kg compact car have the same kinetic energy as a 2.00×10* kg truck going…

A: Given : mass of compact car, mc = 1000 kg             mass of truck, mt = 2.0 × 104 kg…

Q: What average mechanical power (in W) must a 61.5 kg mountain climber generate to climb to the summit…

A: The mechanical power of the climber can be found as, Here, W and t represent the work-done and…

Q: An object of mass 7.39 kg is moving with an initial kinetic energy 394 Joules. If the object…

A: Given data: Mass of the object, m=7.39 kg Initial kinetics energy of the object, K.Ei=394 J…

Q: A 60 kg snowboarder (including equipment) heads down a ski hill starting at a height of 100 m, from…

A: Mass, m = 60Kgheight, h = 100minitial speed, u = 4.5m/sfinal speed , v = 90kmh = 90x518 ms =…

Q: A 782 kg car with an initial speed of 38 m/s is observed to coast up a hill to a height 24 m above…

A: It is given that, m=782 kgu=38 m/sh=24 m

Q: An accelerating object of mass m=5 kg is fired with an initial speed v;=9 m/s at a starting point.…

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Q: A 1300-kg car moving on a horizontal surface has speed y = 50 km/h when it strikes a horizontal…

A: The kinetic energy will equal to the elastic potential energy. mv22=kx22

Q: A 98 kg bicyclist traveling 15 m/s coasts up a 5 m high incline. After reaching the top of the…

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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…

A:

Q: You drag your 30 kg suitcase 1200 m thru the Chicago airport at essentially constant velocity 2.0…

A: Given: Mass, M = 30kg Distance , s= 1200m Velocity, v = 2.0m/s Force, F = 90N, 20o westward

Q: An advertisement claims that a 1000 kg car can accelerate from rest to a speed of 20 m/s in a time…

A: mass = 1000kg v1= 0m/s;    v2=20m/s t= 5sec. K.E1= 0  (car starts from rest) K.E2= (1/2)* 1000*…

Q: Calculate the average power necessary for a 55.8 kg person to run up a 5.0 m high, sloped hill, in…

A: The expression for the average power is P=Wt Here,P  is the average power,  iWs the work done by…

Q: A 5.0 N projectile leaves the ground with a kinetic energy of 220 J. At the highest point in its…

A: The difference between the kinetic energies is,

Q: A bag of wheat weight 450 kg .To what height should it be raised so that potential energy is 8950J ?…

A: Write the given values with the suitable variables. m=450 kgP=8950 J Here, m is the mass and P is…

Q: A 2.8 kg object is dropped, from rest, from a height of 15.5 m above the ground. Assuming…

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Q: A student wearing frictionless in line skates on a horizontal surface is pushed by a friend with a…

A: The given data are: F=45 NKf=352 JKi=0 J Here, Ki denotes the initial kinetic energy, Kf denotes the…

Q: A 98 kg bicyclist traveling 15 m/s coasts up a 5 m high incline. After reaching the top of the…

A: Given: Mass of bicyclist, m=98 kg Speed of bicyclist at bottom, u=15 m/s Speed of bicyclist at top…

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: A cart of mass 2 kg moves with a velocity of 0.5 m/s along the negative x-direction. The kinetic…

A: The mass of the cart, m=2 kg   The velocity of the cart along the negative x-direction, v=-0.5 m/s

Q: How high up is a 3200-kg plane if it has 960000 J of potential energy?

A: Potential energy = mgh

Q: What average mechanical power (in W) must a 70.5 kg mountain climber generate to climb to the summit…

A: The expression for the average mechanical power (P) is,

Q: What average mechanical power (W) must a 76.5kg mountain climber generate to climb to the summit of…

A: Given that: m=76.5 kgg=9.8 m/s2h=405 mt=46 min=2760 sec W=?

Q: A 55 kg boy swings on a single strand of rope 9.50m long and passes the lowest point at a speed of…

A: Given, Mass of boy,m=55 kg Length of rope,L=9.5 m Elevation of lowest point,h1=0.7 m Speed at lowest…

Q: What is the power output for a 60.0-kg woman who runs up a 3.00 m high flight of stairs in 3.50 s,…

A: The mass of the woman is m=60 kg. The height is h=3 m. The time is t=3.50 s. The final speed is vf=2…

Q: A bag of wheat weight 430 kg. To what height should it be raised so that potential energy is 7790J?…

A: Given data :                 Acceleration  due to gravity    =   g                         Potential…

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∘…