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Magazine Chapter 5: Force and Motion
Q.25
Exercises 25 describe a situation. Identify all forces acting on the object and draw a free-body diagram of the object.
Your physics textbook is sliding across the table.
Q.26
Exercises 26 describe a situation. Identify all forces acting on the object and draw a free-body diagram of the object.
A steel beam, suspended by a single cable, is being lowered by a crane at a steadily decreasing speed.
Q.27
Exercises 27 describe a situation. Identify all forces acting on the object and draw a free-body diagram of the object.
A jet plane is accelerating down the runway during takeoff.
Friction is negligible, but air resistance is not.
Q.28
Redraw the two motion diagrams shown in the FIGURE , then draw a vector
beside each one to show the direction of the net force acting on the object.
Explain your reasoning.
Q.29
A single force with x-component Fxacts on a 2.0 kg object as it
moves along the x-axis. The object鈥檚 acceleration graph (ax versus t)
is shown in the figure. Draw a graph of Fx versus t.
Q 3.
A baseball player is sliding into second base. Identify the forces
on the baseball player.
Q. 3
A brick is falling from the roof of a three-story building. How many force vectors would be shown on a free-body diagram? Name them.
Q.30
A single force with x-component Fxacts on a 500 g object as it moves along the x-axis. The object鈥檚 acceleration graph (ax versus t) is shown in FIGURE. Draw a graph of Fx versus t.
Q.31
A single force with x-component Fx acts on a 2.0 kg object as it moves along the x-axis. A graph of Fx versus t is shown in FIGURE . Draw an acceleration graph (ax versus t) for this object.
Q.32
A single force with x-component Fx acts on a 500 g object as it moves along the x-axis. A graph of Fx versus t is shown in FIGURE . Draw an acceleration graph (ax versus t) for this object.
