Chapter 5: Q no. 9 (page 127)
If an object is at rest, can you conclude that there are no forces acting on it? Explain.
Short Answer
No, we couldn't conclude that there are no forces acting on it.
Chapter 5: Q no. 9 (page 127)
If an object is at rest, can you conclude that there are no forces acting on it? Explain.
No, we couldn't conclude that there are no forces acting on it.
All the tools & learning materials you need for study success - in one app.
Get started for freeThe leaf hopper, champion jumper of the insect world, can
jump straight up at 4 m/s2. The jump itself lasts a mere 1 ms before the insect is clear of the ground.
a. Draw a free-body diagram of this mighty leaper while the
jump is taking place.
b. While the jump is taking place, is the force of the ground on
the leaf hopper greater than, less than, or equal to the force of
gravity on the leaf hopper? Explain.
A single force with x-component Fxacts on a 500 g object as it moves along the x-axis. The object’s acceleration graph (ax versus t) is shown in FIGURE. Draw a graph of Fx versus t.
Figure shows an object’s acceleration-versus-force graph. What is the object’s mass?
Problems 42 through 52 describe a situation. For each, draw a motion diagram, a force-identification diagram, and a free-body diagram.
You’ve slammed on the brakes and your car is skidding to a
stop while going down a hill.
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.
What do you think about this solution?
We value your feedback to improve our textbook solutions.