# Physics

posted by .

How long in seconds does it take for a car accelerating at 3.5m/s2 to go from rest to 120km/hr

• Physics -

First you need to convert the final speed to meters per second. I assume you know how to do that.

Vfinal = 120 km/h = 33.33 m/s

The acceleration rate is a = 3.5 m/s^2

Time required = Vfinal/a = 33.33/3.5
= 9.5 seconds.

## Similar Questions

1. ### physics

How long does it take a car to travel 196 meters when accelerating at 8 m/s2 from rest?
2. ### Physics for life science

1. A car starts from rest and accelerates at a constant rate to 80km/h in 6s in positive direction. What is the acceleration?
3. ### physics

A car starts from rest and accelerates uniformly along a straight horizontal road at 3 metres second squeared for 4 seconds,after which it continues with a constant velocity for a further 6 seconds.CALCULATE THE MAGNITUDE OF THE MAXIMUM …
4. ### Physics

A car starts from rest and accelerates unifomly at 3m/s^2. A second car starts from rest 6 seconds later at the same point and accelerates uniformly at 5m/s^2. How long does it take the second car to over take the first car?
5. ### physics 1

A car is accelerating, from rest, at a rate of 6.74 m/s2. After 4.35 seconds, how far has the car gone?
6. ### physics 1

A car is accelerating, from rest, at a rate of 6.74 m/s2. After 4.35 seconds, how far has the car gone?
7. ### Physics

A car of mass 1200kg starts from rest, accelerates uniformly to a speed of 4.0 meters per second in 2.0 seconds and continues moving at this constant speed in a horizontal straight line for an additional 10 seconds. the brakes are …
8. ### physics

At the moment car A is starting from rest and accelerating at 5.0 m/s2, car B passes it moving at a constant speed of 45m/s. How long will it take car A to catch up with car B?
9. ### physics

A car travelling 19.4m/s passes apolice car at rest.As it passes, the police car starts up, accelerating with a magnitude of 3.2m/s. Maintaining that acceleration, how long will it take the police car to catch up with the speeding …
10. ### engineering mechanics

A police officer observes a motorist who is approaching at a uniform speed of 80km/h he in his patrol car starts chasing it as it just crosses him.after accelerating for 8 seconds at a constant rate he attains his top speed of 120km/h …

More Similar Questions