When an object attains a velocity of 40km/h after starting from rest which velocity is zero *?

Initial velocity u=0 (since it starts from rest). v=40 km/hr = 40 x 1000m/3600sec = 100/9 m/s (final velocity)… Hope it helps…….

What is the initial velocity of a car which is stopped in 10 seconds by applying brakes retardation due to brakes is 2.5 m s2?

Then u = v – at. u = 0 – (-2.5 X 10) = 25 m/s. So initial velocity of the body is 25 m/s.

What is the acceleration of a car if the speed of the car has increased from 25 km per hour to 40 km per hour in one minute?

Answer: accleratiin equals to change in speed by time. A=40-25/60 . 15/60=1/4=0.25m/sec^2.

What is the velocity of a car starting from rest?

Starts at rest, so initial velocity is zero.

What is initial speed of a car?

(a) The initial speed of the car is the speed at t = 0. Hence, it is 10 km/ h. (b) The maximum speed is 35 km/hr. See the points B and C. (c) B to C shows zero acceleration as there is no change in speed of the car with respect to time.

What is the acceleration of a car if the speed?

Therefore, the acceleration of the car is 0.07 m/s ².

What is the average acceleration of a car in 8 seconds?

Example 1: If your car starts at 0 mph and accelerates to 60 miles per hour in 8 seconds, what is its average acceleration during these eight seconds? The answer is (60 mph – 0 mph) / 8s = (26.8224 m/s – 0 m/s) / 8s = 3.3528 m/s 2 (meters per second squared) average acceleration. That would be 27,000 miles per hour squared.

What is the speed of a car when it comes to rest?

A car start from rest, moves with uniform acceleration and attains a velocity of 72km/h in 1.5 s it moves with uniform speed for 20 s and is then brought to rest in 10 s under uniform retardation, then total distance travelled

What is the acceleration of a truck traveling at 60 mph?

The answer is (60 mph – 0 mph) / 8s = (26.8224 m/s – 0 m/s) / 8s = 3.3528 m/s 2 (meters per second squared) average acceleration. That would be 27,000 miles per hour squared. Example 2: If a truck is travelling at 50 km/h and increases its velocity to 65 km per hour in 10 seconds, what is its acceleration?

What is an example of constant acceleration?

Uniform or constant acceleration is a type of motion in which the velocity of an object changes by an equal amount in every equal time period. A frequently cited example of uniform acceleration is that of an object in free fall in a uniform gravitational field.