From the problem statement, the initial speed is 100 km/hr, the final speed is 0, and the time of change is 12.5 seconds. The acceleration is therefore:
[(0 - 100)km/hr]/12.5 sec = -8 km/hr/sec.
It is customary, but not fundamentally necessary, to "normalize" the units of time so that they can be expressed as a square of the same unit. This can be done by noting that 1 hr = 3600 sec, so that -100 km/hr = 1/36 km/sec. The answer can then be written as - (8/36) km/sec2, and 8/36 can be reduced to 2/9.
Note that, since the sign of the acceleration is negative, this acceleration could properly be described as "deceleration".
what is the change in speed or velocity? average acceleration will be change in speed or velocity divided by time taken (4 seconds in ur case)
If he started out from "rest" (zero speed), then his average acceleration for the 5 seconds is50/5 = 10 meters per second2
Both the speed and velocity have increased as a result of acceleration.
You haven't mentioned the speed difference or speed gain in this question so it cannot be answered
Average acceleration = (change in speed) divided by (time interval)A = (40 - 25) / 15 = 15/15 = 1 meter/sec2
Velocity is a constant traveling speed. Acceleration is increasing traveling speed (variation of speed over time)
If your acceleration is zero, then yes, you are traveling at a constant speed. The path does not matter. Acceleration measures the change in velocity, so an acceleration of zero means that there is zero change in velocity and therefore the speed is constant.
Yes, if you are traveling in a straight line with an acceleration of zero, your speed will be constant. This means that your velocity is not changing, and you are moving at a steady rate.
what is the change in speed or velocity? average acceleration will be change in speed or velocity divided by time taken (4 seconds in ur case)
Straight line at a constant speed = no acceleration
The acceleration of the car can be calculated using the equation: acceleration = change in velocity / time taken. The change in velocity is 30.0 m/s - 25.0 m/s = 5.0 m/s. The time taken is given as 10.0 seconds. Plugging these values into the equation gives an acceleration of 0.5 m/s^2.
No, you are not accelerating if you are traveling in a constant direction with a constant speed. Acceleration is the rate of change of velocity, so if your velocity remains constant, there is no acceleration.
Acceleration is defined as any change in velocity, including changes in direction. When an object travels in a circle at constant speed, it is constantly changing direction, which requires acceleration towards the center of the circle to maintain that curved path. This acceleration is called centripetal acceleration.
If the speed of an object does not change, the object is traveling at a constant speed.
If the speed of a car traveling south is increasing at 5 m/s, then its acceleration is 5 m/sĀ². This acceleration indicates the rate at which the car's velocity is changing per unit time.
An object traveling at constant velocity cannot have acceleration because acceleration is the rate of change of velocity over time. If the velocity of an object is constant, there is no change in velocity and therefore no acceleration.
It is travelling at a constant speed. This does not mean that there is no acceleration or that the direction of motion remains the same.