Match each force abbreviation to the correct description. Fg Fp Ff Fn force exerted by a push or pull. Support force at a right
2 answers:
Explanation:
Force Description
1. It is also known as the weight of an object. It is the force that is exerted on an object due to its mass
2. It is force which is exerted by a push or a pull on an object. It is also known as applied force.
3. It is known as resistive force. It opposes the motion of an object.
4. It is the force which is at a right angle to the surface or perpendicular to the surface.
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Answer: Normal force, N = 141.64 Newton
Explanation:
All the forces acting on the system and described in free body diagram are:
1) gravitational pull in downward direction
2) Normal force in upward direction
3) External force of 40 N acting at an angle of 37° with the horizontal can be resolved in two rectangular components:
i) F Cos 37° along the horizontal plane in forward direction and
ii) F Sin 37° along the vertical plane in downward direction
Applying the Newton's second law, net forces in the vertical plane are:
Net force, f = N - (mg + F Sin 37°)
As there is no acceleration in the vertical plane hence, net force f = 0.
So,
N - (mg + F Sin 37°) = 0
Adding (mg + F Sin 37°) both the sides in above equation, we get
N = mg + F Sin 37°
N = 12 9.8 + 40
0.601 because (Sin 37° = 0.601)
N = 117.6 + 24.04
N = 141.64 Newton
