Chapter 5: Force and Motion

A constant force is applied to an object, causing the object to accelerate at 8.0 m/s². What will the acceleration be if

a. The force is doubled?

b. The object’s mass is doubled?

c. The force and the object’s mass are both doubled?

d. The force is doubled and the object’s mass is halved?

A constant force is applied to an object, causing the object to accelerate at 10 m/s². What will the acceleration be if

a. The force is halved?

b. The object’s mass is halved?

c. The force and the object’s mass are both halved?

d. The force is halved and the object’s mass is doubled?

Problems 35 through 40 show a free-body diagram. For each:

a. Identify the direction of the acceleration vector au and show it as a vector next to your diagram. Or, if appropriate, write $\overrightarrow{a}=\overrightarrow{0}$

b. If possible, identify the direction of the velocity vector $\overrightarrow{v}$and show it as a labeled vector.

c. Write a short description of a real object for which this is the

correct free-body diagram. Use Examples 5.4, 5.5, and 5.6 as

models of what a description should be like.

Problems 35 through 40 show a free-body diagram. For each:

a. Identify the direction of the acceleration vector au and show it as a vector next to your diagram. Or, if appropriate, write$\overrightarrow{a}=\overrightarrow{0}$

b. If possible, identify the direction of the velocity vector $\overrightarrow{v}$and show it as a labeled vector.

c. Write a short description of a real object for which this is the

correct free-body diagram. Use Examples 5.4, 5.5, and 5.6 as

models of what a description should be like.

Problems 35 through 40 show a free-body diagram. For each:

a. Identify the direction of the acceleration vector $\overrightarrow{a}$and show it as a vector next to your diagram. Or, if appropriate, write $\overrightarrow{a}=\overrightarrow{0}$

c. Write a short description of a real object for which this is the

correct free-body diagram. Use Examples 5.4, 5.5, and 5.6 as

models of what a description should be like.

Problems 35 through 40 show a free-body diagram. For each:

a. Identify the direction of the acceleration vector au and show it as a vector next to your diagram. Or, if appropriate, write

b. If possible, identify the direction of the velocity vector and show it as a labeled vector.

c. Write a short description of a real object for which this is the

correct free-body diagram. Use Examples 5.4, 5.5, and 5.6 as

models of what a description should be like.

Problems 35 through 40 show a free-body diagram. For each:

a. Identify the direction of the acceleration vector $\overrightarrow{a}$and show it as a vector next to your diagram. Or, if appropriate, write $\overrightarrow{a}=\overrightarrow{0}$b. If possible, identify the direction of the velocity vector and show it as a labeled vector.

c. Write a short description of a real object for which this is the

correct free-body diagram. Use Examples 5.4, 5.5, and 5.6 as

models of what a description should be like.

A jet plane is speeding down the runway during takeoff. Air

resistance is not negligible. Identify the forces on the jet.

InFIGURE Q5.4, block B is falling and dragging block A across a table. How many force vectors would be shown on a free-body diagram of block A? Name them

Problems 35 through 40 show a free-body diagram. For each:

a. Identify the direction of the acceleration vector and show it as a vector next to your diagram. Or, if appropriate, write b. If possible, identify the direction of the velocity vector and show it as a labeled vector.

c. Write a short description of a real object for which this is the

correct free-body diagram. Use Examples 5.4, 5.5, and 5.6 as

models of what a description should be like.