7. The rate at which velocity changes is?
A. Acceleration
B. Direction
C. Speeds
D. Velocity
8. Which is the example of velocity?
A. A pickup driving 30 km in 20 minutes
B. A car slowing down on a sharp curve
C. An airplane traveling 450 km/h
D. An 18 wheeler driving west at 50 km/h
9. Which is an example of acceleration?
A. A pickup driving 30 km in 20 minutes
B. A car slowing down on a sharp curve
C. An airplane traveling 450 km/h
D. An 18 wheeler driving west at 50 km/h
5 answers
What do you believe are the correct answers??
I honestly don’t know
Do you recall your teacher saying something along the lines...
"The velocity of an object is the rate of change of its position with respect to a frame of reference, and is a function of time. Velocity is equivalent to a specification of its speed and direction of motion."
Most specifically velocity has a speed and direction... THat will help you answer #8 to begin with.
"The velocity of an object is the rate of change of its position with respect to a frame of reference, and is a function of time. Velocity is equivalent to a specification of its speed and direction of motion."
Most specifically velocity has a speed and direction... THat will help you answer #8 to begin with.
Velocity and acceleration are vectors.
A vector has BOTH speed and direction.
You can tell the speed of your car with a speedometer. HOWEVER for velocity you need BOTH a speedometer and a COMPASS. (remember that. It is a good way to remember what a vector is)
The acceleration vector is the rate of change of the velocity vector.
If velocity changes, plus or minus or in speed or in direction, you have acceleration
A vector has BOTH speed and direction.
You can tell the speed of your car with a speedometer. HOWEVER for velocity you need BOTH a speedometer and a COMPASS. (remember that. It is a good way to remember what a vector is)
The acceleration vector is the rate of change of the velocity vector.
If velocity changes, plus or minus or in speed or in direction, you have acceleration
typo: A vector has both MAGNITUDE and direction.
2 answers