1 A boy and his skateboard of total mass 60kg coasts down a frictionless ramp at an angle horizontal. (a) Calculate the normal force acting on the boy and skateboard. (b) Calculate the force acting on the boy and skateboard parallel to the ramp.

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A: Write an expression for average force using Newton’s second law of motion

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Q: Two forces, of magnitudes Fi=85.0 N and F₂ = 35.0 N, act in opposite directions on a block, which…

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A: Force acting on  block 1  is TA along rightForce acting on block 2 is TB along right…

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A: Given, mass = 1.62 T= 0.0011 sec v= 161 ft/sec degree = 20°

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A: (a) The free body diagram of force exerted on the block. Here,  is the first force directed along…

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A: Since you have posted multiple questions, we will provide the solution only to the first question as…

Q: A 3.00-kg object is initially moving northward at 15.0 m/s. Then a force of 15.0 N, toward the east,…

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Q: 1. A 20 kg body is initially moving at 30 m/s to the right along a frictionless horizontal surface…

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Q: When does kinetic friction occur in trying to push a heavy object? O when the object is still when…

A: when the force you apply is smaller than the maximum static frictional force.

Q: E-4 A 3.00kg block is initially sliding to the right on a frictionless surface at 7.00m/s. Force P…

A: Solution: Mass of block , m=3Kginitial speed , Vi=7m/smagnitude of P Vaxis as time

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Q: Consider the figure shown in the following figure. You are lowering two boxes, one on top of the…

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Q: A. Approximate the average net force during the jumping phase B. Approximate the average…

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Q: What force must Joe apply to the handle?

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Q: A train is equipped with a 50 Mg engine and three cars which each have a mass of 30 Mg. The train…

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A: Here, the impulse is

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A: Given  mass of crate(m)=50 kg force(F)=120 N angle=420 Required total normal force

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Q: Q.1 which of the following statements are true? (30M) (a) An object can move even when no force acts…

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Q: A 12.0-kg body initially traveling at 8.00 m/s subsequently experiences a net, constant force that…

A: Given,mass of the object, m = 12.0 kginitial speed, u = 8.00 msfinal speed of the body, v = 18.0…

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Q: 1. A large semi truck has a mass of 35,000 kg. It collides head on with a car that has a mass of…

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Q: A 630 kg car pulling a 545 kg trailer accelerates forward at a rate of 2.24 m/s2. Assume frictional…

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Q: Q.5. In figure (6), body A weighs 200N and body B weighs 400N. The coefficient of friction for all…

A: Given, Weight of body A= 200 N Weight of body B= 400 N Friction coefficient= 0.4 Free body diagram…

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A: Given: The applied force is 3 N. The speed of the object is constant.

Q: A block of mass ?=2.80 kg is being pulled by a force ?⃗ of magnitude 12.0 N on a horizontal, smooth…

A: a. The magnitude of the normal force is N+Fsinθ=mgN=mg-Fsinθ=2.80 kg9.8 m/s2-12.0 Nsin30.0°=21.4 N

Q: NIM.8 A 1500-kg car traveling at a steady speed of 20 m/s (about 44 mi/h) initially due northwest…

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Q: 2. A person of mass 60 kg is able to exert a constant 1200 N of force downward when executing a jump…

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Q: A 863-kg car starts from rest on a horizontal roadway and accelerates eastward for 5.00 s when it…

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