A block released from rest at position A slides with negligible friction down an inclined track, around a vertical loop, and then along a horizontal portion of the track, as shown above. The block never leaves the track. Which of the following is true of the net force on the block when it is at position C? A. It is directed vertically downward only. B. It is directed vertically upward only. C. It is directed to the left only. D. It is directed to the right only. E. It has components both to the left and vertically downward.

Q: Calculate the force that a 5 kg block exerts as it rests on the Earth's surface. Assume the…

A: Mass (m) = 5 kg gravitational acceleration (g) = 9.8 m/s2

Q: A working boy pushes a 15kg lawnmower at a constant speed with force of 90.0N directed along the…

A: Solution: (a) We know that the net force acting on the lawnmower in horizontal direction must be…

Q: The question refers to a coin which is tossed straight up into the air. After it is released, it…

A: Given:-  You toss the coin in the upward direction straight up in the air after it is released, it…

Q: The block shown is pulled across the rough horizontal surface at a constant speed by the force…

A:

Q: If a horizontal force is applied to an object, how can you tell if an object will start moving?…

A: If a horizontal force is applied to an object which is at rest.

Q: 1,180-N crate is being pushed across a level floor at a constant speed by a force F of 390 N at an…

A:

Q: A block sets on a rough (ju), horizontal surtace. When the forces F,= 30 N and F2= 10 N are applied…

A: The coefficient of kinetic friction between the block and the surface is, μk=F2F1=1030=0.33

Q: A box is projected upward onto a ramp that has a 15 degree incline. I know knows that it starts with…

A:

Q: A block of mass m sits at rest on a rough inclined ramp that makes an angle θ with the horizontal.…

A:

Q: A box with a weight of 50 N rests on a horizontal surface. A person pulls horizontally on it with a…

A:

Q: A 50 kg cart is initially at rest. Jezzel decided to pull the cart on a frictionless ramp inclined…

A:

Q: 30 F m

A:

Q: A 2.70 kg block is initially at rest on a horizontal surface. A horizontal force F of magnitude 5.98…

A:

Q: A skier is on a mountain whose slope is 20 °. The coefficient of kinetic friction is 0.22. At a…

A: Concept used: Frictional force acts in direction opposite to direction of motion. Equations of…

Q: Calculate the magnitude of the normal force on a 17.7 kg block in the following circumstances.…

A:

Q: The direction of the frictional force is а. same direction of the intended motion b. perpendicular…

A:

Q: A train has a 500,000 kg engine towing 20 cars on a level track. Each car has a mass of 100,000 kg.…

A: The equilibrium condition is,   ma-μsmtraing=0⇒ma=μsmtotalgμs=mamtotalg

Q: 68. Four forces act on an object, as shown in the following diagram. 30. N -F 40. N- 30. N If the…

A: if the object is moving with constant velocity then the acceleration will be zero. Thus the sum of…

Q: Calculate the magnitude of a normal force on a 22.7 kg block in the following circumstances. a. the…

A: Answer :-  a) N = mg  = 22.7 × 9.8 = 222.46 N (b) N = m g cos40.8° = 22.7 × 9.8 × cos40.8°       =…

Q: 2.The 10kg crate is being pushed 5m along a floor by an 80.0-N force, applied at a 20.0 degree angle…

A:

Q: 2 SA bullet with a mass of 0.3 kg is thrown upwards in the vertical direction with an initial…

A:

Q: The direction of the frictional force is O a. same direction of the intended motion O b.…

A: Let a body have a mass = m  Let the initial velocity of mass = v ( along east)  Let the magnitude of…

Q: A man is exerting a constant 150 N horizontal force to push a 20 kg wooden crate upwards along a…

A: Mass of the crater M=20 kg, inclination of ramp is 30o, coefficients of static and kinetic frictions…

Q: 1. Steve pushes a box across a level floor with a constant horizontal force. This causes the box to…

A: Problem 1 As it is mentioned that the box is moving with a constant velocity so the acceleration of…

Q: What is the direction of the net force acting on the object at position B? a. to the right b. to…

A: The acceleration of a body is directly proportional to and in a similar direction as that of the net…

Q: A high jumper with a body weight of 900N exerts an average vertical force of 2150N down on the floor…

A: Given Data: The weight of a high jumper is: W=900 N The average force applied by the jumper to the…

Q: Suppose that the block moves across the surface with constant speed under the action of a horizontal…

A:

Q: hicA donkey pulls a block across a rough horizontal surface at constant speed v by applying force F,…

A: Since you have asked multiple questions, we will solve the first one for you. If you need an answer…

Q: 10. The 500KN is in contact with a 45° inline. The coefficient of static friction is 0.25. Compute…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: The question refers to a coin which is tossed straight up into the air. After it is released, it…

A: Concept: Here In this Question, we have to describe the Force acting on the coin when it is falling…

Q: . A train pulls out of a station along a straight horizontal track with five identical freight cars…

A: When two bodies are joined by some material, and some external force is applied to it, then on the…

Newton’s Third Law of Motion

The horse pulls the cart and the cart pulls the horse in response as per Newton third law. So the big question is, “Don’t the two forces cancel each other? How does the cart accelerate?”