A small 65g toy rocket is launched straight up from the ground at 120 km/h (a) What is the kinetic energy of the toy rocket? (b) Find the work done by gravity after it has risen 110 m. (i) (a). The kinetic energy of the toy rocket is (b). The work done by gravity after it has risen 110 m is

Q: Bonny Blair of the United States set a world record in speed skating when she skated 5.00 x 10^2 m…

A: Kinetic energy is defined as energy due to virtue of its motion. Kinetic energy =12mv2 GIVEN : Mass…

Q: In the figure shown, if the mass (m=5 Kg) is moving with constant speed and traveled a distance d=10…

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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…

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Q: As an object moves from point A to point B only two forces act on it: one force is nonconservative…

A: Non-conservative forces are dissipative forces. These forces take energy away from the system as the…

Q: A tennis ball of mass m = 0.097 kg is thrown straight up with an initial speed v0 = 14 m/s. Let the…

A: mass of ball (m) = 0.097 kg Initial upwards speed (vo) = 14 ms

Q: A 3.5 kg block is placed on a surface inclined by θ = 11∘ as shown, and undergoes a horizontal force…

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Q: A shopper in a supermarket pushes a trolley with a force of 30N directed at an angle of 25° downward…

A: Given : F = 30 N θ = 25° d = 40 m

Q: If A 29-kg child starts from rest and slides down a slide that is 2.6 m high. At the bottom of the…

A: Given parameters :  Mass "m"= 29kg  Height "h"= 2.6m  Final Velocity "v"= 2.5m/s .   Concept :…

Q: Dr. Frankenstein is pushing a loaded Aldi’s cart through a grave- yard collecting parts for his…

A: F=300 Nx=5 mm=85 kgv=0.8 m/s

Q: An accelerating object of mass m=7 kg is fired with an initial speed v;=8 m/s at a starting point.…

A: Given: mass of object m = 7 Kg initial speed vi = 8m/s Final kinetic energy KEf = 369 J To find:…

Q: A 5.0 kg object is moving forward with an applied force of 10.0 N right, displacing 5.0 m right. The…

A: Total work done due to force of gravity on the object is ZERO. NO WORK IS DONE BY FORCE OF GRAVITY…

Q: A single force acts on a I kg panticle-like object in such a way that the position of the object as…

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Q: Andy carries a sack of rice on his shoulder by applying a 250N force. Andy moves 8 m horizontally,…

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Q: A box of mass 20.0 [kg] slides down from the top of a surface inclined at 50.0◦ with height of 10.0…

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Q: A uniform force of (3i + j) newton acts on a particle of mass 2 kg. Hence the particle is displaced…

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Q: A box of mass 25.0 [kg] slides down from the top of a surface inclined at 50.0◦ with height of 10.0…

A: Calculate the distance d moved by the box from the top to the bottom of the incline.…

Q: A physics professor tries to barricade himself in his office by pushing a 30 kg desk in front of the…

A:

Q: Find the work done in joules by gravity as an object of the mass m=11 kg is raised up at constant…

A: Mass, m = 11 kg  Height, h1=29 m and h2=78 m  Acceleration, a = -g = -10

Q: In the figure shown, if the mass (m36 Kg) is moving with constant speed and traveled a distance d314…

A: mass (m)= 6 kg distance covered (d) = 14 m speed = constant F = 15 N θ = 53o

Q: A force of 40 Newtons is applied to an object at an angle of 37 degrees from the horizon, displacing…

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Q: ,2 54. A 5.0-kg box has an acceleration of 2.0 m/s when it is pulled by a horizontal force across a…

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Q: An accelerating object of mass m=20 kg is fired with an initial speed v;=7 m/s at a starting point.…

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Q: A cart is loaded with a rock and pulled at constant speed along an inclined plane to the height of a…

A:

Q: A can of sardines is made to move along an x axis from x = 0.26 m to x = 1.11 m by a force with a…

A:

Q: A man wishes to pull a crate 15m across a rough floor by exerting a force of 100 N. The  coefficient…

A: Assume that the angle between horizontal and the force applied by the man be θ. Draw the free-body…

Q: An object of mass 4.34 kg starts at the top of a hill of height 2 m. When it rolls down to the…

A: The solution is given below

Q: A proton (mass m = 1.67 × 10-27 kg) is being accelerated along a straight line at 2.70 × 1011 m/s2…

A: (a)consider the kinematic equation.Vf2=v02 +2as                (i)             where,     vf=final…

Q: What distance can a crane lift a 55.0 N box, if it expends work of 2.00 x 104 Joules?

A: given ;    force, F = 55.0 N , work done = 2.00 x 104  Joules  formula used;     W = F x d   where,…

Q: If you carry a bag of groceries weighing 115 N from your car to your kitchen, a distance of 44 m,…

A: Given data, Force on bag weighing = 115N Distance to be travelled = 44m We know that, Work done =…

Q: As an object moves from point A to point B only two forces act on it: one force is conservative and…

A:

Q: .How much work is required to move an object from x=2 to x=4 (measured in merters) in presence of…

A: Given:  F(x) = 4 / x2 from x = 2 m to x = 4 m

Q: Consider a particle on which a force acts that depends on the position of the particle. This force…

A: Work done in the y direction is zero. WAB=∫ABFdy=0

Q: In the figure shown, if the mass (m=4 Kg) is moving with constant speed and traveled a distance…

A:

Q: An object is moved on a horizontal surface by a force of 15 N up to a distance of 10 m. The force of…

A: Given Applied force = F = 15 N friction force = f = 7.5 N Displacement = s = 10 m We have to…

Q: In the figure, a constant force F of magnitude 84.0 N is applied to a 3.0 kg shoe box at angle p =…

A: this problem can be solved by work energy theorem  which states that work done is equals the change…

Q: A shopper in a supermarket pushes a trolley with a force of 40N directed at an angle of 35° downward…

A: Given: Force F = 40 N. Angle = 35o Distance ∆x = 30 m To determine: Work done Formula used: W = F ×…

Q: A 4 kg particle has an initial velocity of (6i-3j) m/s. Some time later, its velocity changes to…

A:

Q: A 65g Frisbee is thrown from a point 1.20 m above the ground with a speed of 12.00 m/s. When it has…

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Q: An initially stationary 2.0 kg object accelerates horizontally and uniformly to a speed of 10 m/s in…

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Q: A bag of wheat weight 430 kg. To what height should it be raised so that potential energy is 9150 J…

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Q: porter pulls a 10 kg luggage along a level road for 5 m by exerting a force of 20 N at an angle of…

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Q: Two objects are each displaced the same distance, one by a force F pushing in the direction of…

A: Given  distance=d first force=F1=F second force=F2=4F3 at angle 450

Q: A block of mass m= 2.50 kg is pushed a distance d = 2.20 m along a frictionless horizontal table by…

A: Given data: Mass (m) = 2.50 kg Distance (d) = 2.20 m Applied force (F) = 16.0 N Angle (θ) = 25.0°…

Q: A snowboarder and her board (combined mass 40.0 kgkg) are moving at 9.30 m/sm/s at the bottom of a…

A: Solution: Given that total mass m = 40 kg speed v = 9.3 m/s height achieved due to friction h' = 3.5…