A sled that has a mass of 8 kg is pulled at a 50 degree angle with a force of 20 N. The force of friction acting on the sled is 2.4 N. The free-body diagram shows the forces acting on the sled. What is the acceleration of the sled and the normal force acting on it, to the nearest tenth?

Question

Physics

Selena Lin

11 April, 20:30

A sled that has a mass of 8 kg is pulled at a 50 degree angle with a force of 20 N. The force of friction acting on the sled is 2.4 N. The free-body diagram shows the forces acting on the sled. What is the acceleration of the sled and the normal force acting on it, to the nearest tenth?

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Answers (1)

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Kaylee Barber · Answer 1

There will be 3 equation that we will use this are the following: A = Fnet / m, Fnet = all the forces are given in the problem and Gravitational Force = m*g.

Gravitational Force = 8 kg * 9.8 N/kg = 78.4 N

Fictional Force = 2.4 N

Fnet = 78.4 + 2.4 = 80.8 N

A = Fnet / 8 = 80.8 N / 8 kg = 10.1 N/kg

So the answer is 10.1 N/kg