Table of Contents
- 1 How much does the speed of a vehicle moving in a straight line change each second when it?
- 2 When there is a change in speed but no change in direction is there a change in velocity Why?
- 3 What is the acceleration of a car that maintains a constant velocity of 100 km/hr for 10 seconds?
- 4 Would you be safe in firing a gun that has a bullet 10 times as massive as the gun?
- 5 Can velocity change speed?
- 6 What would be the acceleration of a car that is moving with a constant velocity of 100 km/h to the right for 30 s?
How much does the speed of a vehicle moving in a straight line change each second when it?
Acceleration is defined as the rate of change of velocity (dv/dt). Thus, the change is velocity is equal to the acceleration. In this question, the acceleration of the vehicle (moving in a straight line) is given as 2 km/h.s. Thus, the speed of the vehicle changes by 2 km/h every second.
When there is a change in speed but no change in direction is there a change in velocity Why?
So the velocity can be changed either by changing the speed or by changing the direction of motion (or both). Therefore, it may be possible that the speed is constant, but the velocity is changing because the direction is changing. In this case, acceleration will be non-zero and equal to the rate of change of velocity.
Which has more acceleration when moving in a straight line a car increasing its speed from 50 to 60 km/h or a bicycle that goes from zero to 10km/h in the same time?
Which has more acceleration when moving in a straight line- a car increasing its speed from 50 to 60 km/hr, or a bicycle that goes from zero to 10 km/hr in the same time? Both have equal changes in speed over equal time intervals which means their accelerations are also equal.
What is the acceleration of a car that maintains a constant velocity of 100 km/hr for 10 seconds?
zero
5. What is the acceleration of a car that maintains a constant velocity of 100 km/hr for 10 seconds? Reasoning: Acceleration is related to change in velocity. Since the velocity remains constant, it means the acceleration is zero.
Would you be safe in firing a gun that has a bullet 10 times as massive as the gun?
Would you be safe in firing a gun that has a bullet 10 times as massive as the gun? The gun would recoil with a speed ten times the muzzle velocity. Firing such a gun in the conventional way would not be a good idea.
How far will an object move in one second if its average speed is 5m s?
If an object’s average speed is 5 m/s, it will move 5 m in 1 s.
Can velocity change speed?
Acceleration is the name we give to any process where the velocity changes. Since velocity is a speed and a direction, there are only two ways for you to accelerate: change your speed or change your direction—or change both. Any of these would be considered an acceleration since they change velocity.
What would be the acceleration of a car that is moving with a constant velocity of 100 km/h to the right for 30 s?
The acceleration is zero.