What is a car moving with a speed of 72Km h is brought to rest in 10 sec?

What is a car moving with a speed of 72Km h is brought to rest in 10 sec?

Expert-Verified Answer The retardation is 2m/s² and the distance traveled by a car after applying brakes is 100m.

What is the speed of a car moving at a speed of 72 km h?

72Km/hr = 72×5/18 = 20 m/s.

When a car is moving with a velocity of 72 km h its velocity is reduced to 36 km h?

Its velocity is reduced to 36 km/h after covering a distance of 200 m. Calculate retardation in cm/s^2. If the same retardation iscontinued, what further distance does the car move before coming to rest? Ans: 75 cm/s^2 ,66.67 m.

What is a car moving with 72 km per hour convert speed in meters per second?

The correct answer is 20 m/s. 72 Km/hr = 72 x 1000/3600 = 20 m/s. So the converted velocity is 20 m/s.

What is the formula for retardation?

Hence, the expression for retardation is a = v − u t , when u > v . What is meant by retardation? What is retardation.

What is the speed of a car moving at 50 km per hour returns on the same route with a speed of 40km hr?

Average speed=1+1(1/50)+(1/40)=44.44m/s.

What is the speed of a car travels 60 km in 45 minutes?

time taken by car = 45min. = 45/60 hr = 3/4 hr. speed = 60*4/3 = 80km/hr.

What is the meant by the average speed of a moving car is 60 km h?

When we say that the car travels at an average speed of 60 km/h it does not mean that the car would be moving with the speed of 60 km/h throughout the journey. The actual speed of the car may be less than or greater than the average speed at a particular instant of time.

What is the speed of a car moving with speed 100 km per hour?

A kilometer has 1,000 meters, and an hour has 3,600 seconds, so 100 kilometers per hour is: 100 x 1,000 / 3,600 = 27.777… m/s.

When a car stops what is its velocity?

We know the final velocity is zero because the car has stopped. The only unknown in this equation is the acceleration a. The car decelerates (accelerating in the opposite direction of its motion) because there is an unbalanced force on it.

What is the change in velocity of the car?

We can recall that if an object changes its velocity by an amount Δ𝑣 and it does this over a time Δ𝑡, then the average acceleration 𝑎 of that object is given by Δ𝑣 divided by Δ𝑡. The change in velocity of the car is going to be equal to the car’s final velocity 𝑣 two minus its initial velocity 𝑣 one.

Which force is greater if a car is slowing down?

During deceleration, we know that the resistive forces will be greater than the driving force of the vehicle.

What is the acceleration produced by a bus moving with a velocity of 72 km hr to stop a distance of 50 m?

Hence, acceleration of bus is -4 m/s² and distance travelled by bus after applying brakes is 50 m.

What is the impact speed when a car moving at 100 km h collides with a car ahead traveling at 98 km h in the same direction?

100 − 98 k m / h = 2 k m / h . This is the impact speed.

What is the speed and distance Travelled by a car starting from rest moves with a uniform acceleration of 0.1 for 4 min?

We have to find the speed and distance travelled by the car. From above data we have, u = 0 m/s, a = 0.1 m/s² and t = 4 min = 240 sec. Therefore, the final velocity of the car is 24 m/s. Therefore, the distance travelled by the car is 2880 m.