Question

Plz help i need answers to all these questions

1) On a flat surface: What is the net force of a 2kg box if team A is pulling with 20 N and team F is pulling back with 15 N?

Is the box accelerating? How much?

2) On a ramp: What is the net force of a 2kg box if it is on a ramp at a 30 degree angle and there is a force of friction 10 N?

Is the box accelerating?

What is the normal force

3) A 10 – kg box slides down a frictionless 18o ramp.

What is the acceleration of the box?

Answer 1

1) The net force is 5 N. The box is accelerating 10 m/s

2) The net force is 6.986 N. It is accelerating. Normal Force is 16.986

Step-by-step explanation:

1) 20 N forward - 15 N backwards = a net force of 5 N

Acceleration: Acceleration = Net Force * Mass ( derived from Force = mass * acceleration).

a = 5 N / 2 kg

a= 2.5 m/s^2

2)