Reference no: EM132749105

Newton's Second and Third Laws of Motiongrade 12

1)A car accelerates at a rate of 6.512 m/s2 [north]. If the net force the car must exert to accelerate at that rate is 9183 N [north], what is the mass of the car?

1410 kg

a)59800 kg

b)709 kg

c)5979 kg

2) Newton's second law of motion states that acceleration is inversely proportional to mass. This means that:

a)as mass increases, acceleration increases.

b)as mass increases, acceleration decreases.

c)as mass increases, acceleration stays the same.

d)as mass increases, acceleration becomes negative.

3)A car is moving along a highway at a constant pace. If the action force is the air resistance of the air on the car, backward, then the reaction force must be:

a)The force of the tires on the road, forward.

b)The force of the car on the air, forward.

c)The force of the road on the car, up.

d)The force of the tires on the road, backward.

4)Just before a thrown object leaves your hand, it experiences an applied force of 12 N [west], and a force of air resistance of 8.3 N [east]. If the object is 0.145 kg, what is the acceleration of the object?

a)83 m/ [west]

b)57 m/ [east]

c)26 m/ [west]

d)140 m/ [west]

5)For each Action Force, select the correct Reaction Force:

a)Action force: Person on the boards, forward

B)Reaction force: Boards on the person, backward

C)Reaction force: Boards on the person, forward

D)Reaction force: Person on the boards, backward

6)For each Action Force, select the correct Reaction Force:

A)Action force: Table on pop can, upward

B)Reaction force: Pop can on table, upward

C)Reaction force: Pop can on table, downward

D)Reaction force: table on pop can, downward

7)For each Action Force, select the correct Reaction Force:

A car crashes into a wall.

A)Action force: Car on the wall, forward

B)Reaction force: The wall on the car, backward

C)Reaction force: The wall on the car, forward

D)Reaction force: The car on the wall, backward

8)For each Action Force, select the correct Reaction Force:

A large textbook is sitting on a shelf.

A)Action force: Textbook on the shelf, downward

B)Reaction force: The shelf on the textbook, upward

C)Reaction force: The shelf on the textbook, backward

D)Reaction force: The shelf on the textbook, upward