A net force of 5.0 x 10 newtons causes an object to accelerate at a rate of 5.0 m/s. What is the mass of the object? 9.

Physics for Scientists and Engineers: Foundations and Connections
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Chapter5: Newton's Laws Of Motion
Section: Chapter Questions
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please help with question number 9
How does the force applied to an object affect its
acceleration?
What is the key to winning a tug of war?
A 50.0 kg object in outer space is attracted to a nearby
planet with a net force of 400 newtons. What is the
magnitude of the object's acceleration?
a=Fnet/m
* Assessment/Homework:
How much thrust must a 3.0 x 10* kg jet plane develop to achieve an
acceleration of 1.5 m/s2?
What acceleration will be produced by a force of 2.0 x 10' N on a 1.0 x 10' kg
cart?
1.
2.
3.
Two forces are applied to a 2.0 kg block on a frictionless, horizontal surface.
F, = 2.0 N
F, = 8.0 N
2.0 kg
Frictionless Surface
What is the acceleration of the block?
What is the magnitude of the net force acting on a 2.0 x 10 kg car as it
accelerates from rest to a speed of 15 m/s in 5.0 seconds?
A man weighs 900 newtons standing on a scale in a stationary elevator. If
some time later the reading on the scale is 1200 newtons, describe the motion
and direction of the elevator.
4.
5.
A net force F causes mass mj to accelerate at rate a. A net force of 3F causes
mass m2 to accelerate at rate 2a. What is the ratio of mass m, to mass m2?
A 0.60 kg softball initially at rest is hit with a bat. The ball is in contact with
the bat for 0.20 second and leaves the bat with a speed of 25 m/s. What is the
magnitude of the average force exerted by the ball on the bat?
A 1.2 x 10° kg car is accelerated uniformly from 10 m/s to 20 m/s in 5.0
seconds. What is the magnitude of the net force acting on the car during this
5.0 second interval?
A net force of 5.0 x 10´ newtons causes an object to accelerate at a rate of 5.0
m/s. What is the mass of the object?
6.
7.
8.
9.
Transcribed Image Text:How does the force applied to an object affect its acceleration? What is the key to winning a tug of war? A 50.0 kg object in outer space is attracted to a nearby planet with a net force of 400 newtons. What is the magnitude of the object's acceleration? a=Fnet/m * Assessment/Homework: How much thrust must a 3.0 x 10* kg jet plane develop to achieve an acceleration of 1.5 m/s2? What acceleration will be produced by a force of 2.0 x 10' N on a 1.0 x 10' kg cart? 1. 2. 3. Two forces are applied to a 2.0 kg block on a frictionless, horizontal surface. F, = 2.0 N F, = 8.0 N 2.0 kg Frictionless Surface What is the acceleration of the block? What is the magnitude of the net force acting on a 2.0 x 10 kg car as it accelerates from rest to a speed of 15 m/s in 5.0 seconds? A man weighs 900 newtons standing on a scale in a stationary elevator. If some time later the reading on the scale is 1200 newtons, describe the motion and direction of the elevator. 4. 5. A net force F causes mass mj to accelerate at rate a. A net force of 3F causes mass m2 to accelerate at rate 2a. What is the ratio of mass m, to mass m2? A 0.60 kg softball initially at rest is hit with a bat. The ball is in contact with the bat for 0.20 second and leaves the bat with a speed of 25 m/s. What is the magnitude of the average force exerted by the ball on the bat? A 1.2 x 10° kg car is accelerated uniformly from 10 m/s to 20 m/s in 5.0 seconds. What is the magnitude of the net force acting on the car during this 5.0 second interval? A net force of 5.0 x 10´ newtons causes an object to accelerate at a rate of 5.0 m/s. What is the mass of the object? 6. 7. 8. 9.
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