Question 1

A packing crate slides down an inclined ramp at constant velocity. Thus we can deduce that

Accepted Answer

A)   a frictional force is acting on it.
B)   a net downward force is acting on it.
C)   a net upward force is acting on it.
D)   it is not acted on by appreciable normal force.
E)   it is not acted on by appreciable gravitational force.

Question 2

A 55-kg box rests on a horizontal surface. The coefficient of static friction between the box and the surface is 0.30. A 140-N force is applied to the box. What is the frictional force on the box?

Accepted Answer

The answer of A 55-kg box rests on a horizontal...

Question 3

FIGURE 6-3 
-Compare the two situations shown in Figure 6-3. On the left (A) , James is holding the rope and keeping the bucket at rest. On the right (B) , James ties the rope to the bucket so that it keeps the bucket at rest. In both cases the bucket contains the same quantity of water. In what case is the tension in the rope higher?

Accepted Answer

A)   left
B)   right
C)   It is the same in both cases.
D)   We need more data to answer.

Question 4

A body moving with constant speed cannot be accelerating.

Accepted Answer

A) True 
 B)False

Question 5

FIGURE 6-11 2 B)  0.981 m/s2 C)  4.71 m/s2 D)  5.89 m/s2 E)  6.54 m/s2" class="answers-bank-image d-inline" rel="preload" >
-Refer to Figure 6-11. Block A has a mass of 2.00 kg and rests on a rough table and is connected to block B, which has a mass of 3.00 kg, after passing over an ideal pulley, as shown. Block B is released from rest. The coefficient of kinetic friction between block A and the table is 0.300. What is the acceleration of the masses?

Accepted Answer

A)   3.92 m/s2
B)   0.981 m/s2
C)   4.71 m/s2
D)   5.89 m/s2
E)   6.54 m/s2

Exam 6: Applications of Newtons Laws

Correct Answer
verified

A 55-kg box rests on a horizontal surface. The coefficient of static friction between the box and the surface is 0.30. A 140-N force is applied to the box. What is the frictional force on the box?

Correct Answer
verified

A packing crate slides down an inclined ramp at constant velocity. Thus we can deduce that

Correct Answer
verified

A body moving with constant speed cannot be accelerating.

Correct Answer
verified

Correct Answer
verified

Exam 6: Applications of Newtons Laws

Correct AnswerverifiedShow Answer

A 55-kg box rests on a horizontal surface. The coefficient of static friction between the box and the surface is 0.30. A 140-N force is applied to the box. What is the frictional force on the box?

Correct AnswerverifiedShow Answer

A packing crate slides down an inclined ramp at constant velocity. Thus we can deduce that

Correct AnswerverifiedShow Answer

A body moving with constant speed cannot be accelerating.

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified