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Acceleration = Change in speed/Time

Time = Change in Speed/Acceleration = 65mph/20mph per s = 65/20 seconds = 3.25 seconds

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Q: How long would it take a car to accelerate from 10 MPH to 75 MPH if its acceleration is 20 MPHs?
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How long would it take a car to accelerate from 20 mph to 60 mph if its acceleration is 20 mphsec?

2 secs


How long would it take a car to accelerate from 20 mph to 60 mph if its acceleration is 10 mphsec?

About .0011111 hours, or about 4 seconds.This is assuming the units are miles/(hour*sec), which converts to 36000 miles/(hour^2) as the acceleration.


How long it takes to drive 584 at 70 mphs?

8 hours 20 minutes.


How long would it take a car to accelerate from 10 mph to 45 mph if it's acceleration is 20 mph?

There is no such thing as 20 mph acceleration. 20 mph is a velocity. Acceleration is expressed as velocity per unit time e.g. mph per second or mph per minute etc.


What is the acceleration when an object accelerated from 25m's to 45m's?

depends on how long it takes to accelerate from these speeds (45m/s-25m/s)/time(s)


How long would it take a car to accelerate from 15 MPH to 75 MPH if its acceleration is 20 MPH?

The formula for finding time based on acceleration and speed is: (Delta)t = (Delta)v/a Change in time = change in speed / acceleration t = 75-15 / 20 t = 60 / 20 t = 3 seconds


How long does it take to accelerate from 90 kilometers per hour to 120 kilometers per hour?

Depends on the rate of acceleration (km / h) / second


How long would it take a car to accelerate from 20 mph to 45 mph if its acceleration is 10 mphsec?

a = (vf - v0)/Δt 10 mph/s = (45 mph - 20 mph)/Δt Δt = 2.5 s


If an object starts to accelerate?

If an object moved with constant acceleration it's velocity must ?


How long does it take to accelerate from 0 mph to 40 mph?

It would depend on the vehicle.


How fast does a bullet accelerate when it leaves a gun barrel?

A bullet does not accelerate after it leaves the barrel of a gun. It will decelerate. You could say it accelerates, but the acceleration would be negative. The bullet is accelerated by expanding gas as it moves down the barrel, and after it leaves the muzzle, there is no more acceleration imparted from expanding gas. We also find that air friction (drag) is acting to slow it down. Think this one through and it becomes obvious.


What is acceleration zone in track and field?

The exchange zone on a 400 meter track is 20 meters long. For races involving 200 meter legs or less, a 10 meter acceleration zone may be marked on the track and used by the runner receiving the baton to accelerate to match speed with the incoming runner. With or without an acceleration zone, the baton must still be exchanged within the official 20 meter zone.