A vehicle of known mass accelerates along a straight path.
What cased this acceleration, according to Newton's second law of motion?
Responses
The mass of the vehicle has changed.
The mass of the vehicle has changed.
A balanced force has acted on the vehicle.
A balanced force has acted on the vehicle.
The direction of the vehicle has changed.
The direction of the vehicle has changed.
An unbalanced force has acted on the vehicle.
An unbalanced force has acted on the vehicle.
9 answers
According to Newton's second law of motion, an unbalanced force has acted on the vehicle, causing its acceleration.
What force is needed to give a 4.5 kg bowling ball an acceleration of 9 m/s2?
Responses
0.5 N
0.5 N
2 N
2 N
36.5 N
36.5 N
40.5 N
Responses
0.5 N
0.5 N
2 N
2 N
36.5 N
36.5 N
40.5 N
The force needed to give a 4.5 kg bowling ball an acceleration of 9 m/s^2 can be calculated using Newton's second law of motion:
Force = mass x acceleration
Force = 4.5 kg x 9 m/s^2
Force = 40.5 N
So the force needed is 40.5 Newtons.
Force = mass x acceleration
Force = 4.5 kg x 9 m/s^2
Force = 40.5 N
So the force needed is 40.5 Newtons.
When divided by △t, (vf−vi) is used to determine which characteristic?
Responses
acceleration
acceleration
displacement
displacement
speed
speed
direction
Responses
acceleration
acceleration
displacement
displacement
speed
speed
direction
When divided by △t, (vf - vi) is used to determine acceleration.
What acceleration does the force of Earth's gravity produce?
Responses
It varies depending on how long it has been falling.
It varies depending on how long it has been falling.
Gravity does not produce an acceleration.
Gravity does not produce an acceleration.
9.8 m/s/s
9.8 meters slash second slash second,
It changes direction every 9.8 meters.
It changes direction every 9.8 meters.
Responses
It varies depending on how long it has been falling.
It varies depending on how long it has been falling.
Gravity does not produce an acceleration.
Gravity does not produce an acceleration.
9.8 m/s/s
9.8 meters slash second slash second,
It changes direction every 9.8 meters.
It changes direction every 9.8 meters.
The force of Earth's gravity produces an acceleration of 9.8 m/s^2 (also written as 9.8 meters per second squared).
What is the acceleration of a 32 kg object if a 6.75 N force is applied to it?
Responses
0.21 m/s2
0.21 meters per second squared,
4.74 m/s2
4.74 meters per second squared,
21.09 m/s2
21.09 meters per second squared,
216.00 m/s2
Responses
0.21 m/s2
0.21 meters per second squared,
4.74 m/s2
4.74 meters per second squared,
21.09 m/s2
21.09 meters per second squared,
216.00 m/s2
To calculate the acceleration of a 32 kg object when a 6.75 N force is applied to it, we use Newton's second law of motion:
Force = mass x acceleration
Rearranging the equation, we have:
Acceleration = Force / mass
Substituting the given values, we get:
Acceleration = 6.75 N / 32 kg
Acceleration ≈ 0.21 m/s^2
So, the acceleration of the object is approximately 0.21 meters per second squared.
Force = mass x acceleration
Rearranging the equation, we have:
Acceleration = Force / mass
Substituting the given values, we get:
Acceleration = 6.75 N / 32 kg
Acceleration ≈ 0.21 m/s^2
So, the acceleration of the object is approximately 0.21 meters per second squared.
1 answer