Question

Hey can you help me with these questions?

Answer 1

T: Fnet = ma ∴ a = Fnet / m which is inversely proportional

F: (I think)

T: Fnet is the sum of all forces

T: a = Fnet / m so it is dependent on mass and force

T: When Fnet ≠ 0, then both a and m must not be 0

6. (a): Fg = mg

7. (d): For it to not move (acceleration is 0), Fnet must be 0. This means the sum of the forces must be 0. Since the normal force and the gravitational force are in opposite directions, if they have equal magnitudes, then the net force will be 0. Fg = 80 N ∴ Fn must be 80 N.

8. (a): Free body diagrams show all the forces. The only answer that is a force is the frictional force. And pressure is certainly not correct.

Answer 2

1.True

2.False

3.True

4.Fasle

5.True

6. A

7.I would say A

8. B

Step-by-step explanation:

T: Acceleration is inversely proportional to the mass of an object

F: the terminal velocity of an object includes both speed and direction

T: the net force is the combination of all the forces and object experiences newtons

F: second law states that the acceleration of an object is dependent on the mass and force of the object

T: whenever force is not balanced acceleration occurs