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A car accelerates (at a constant acceleration) from a velocity of 25m/s to 34m/s in 6s. Calculate the cars acceleration.

Acceleration is defined as

A = change in velocity / time,

For this example

A = (34-25 )/ 6 = 9/6 = 1.5 m/s^2

Answered by Sarah K. Physics tutor
5439 Views

If a 30N force is applied to a stationary object of mass 10kg, at what speed will the object accelerate?

By taking the formula F=m*a, and rearranging the make a the subject, we get a=F/m. Then by substituting in the values given we can work out that a=30/10=3. The units of acceleration are ms-2 so...

Answered by Chris M. Physics tutor
5072 Views

Why does the temperature of a substance during a phase change stay constant, despite heat being transferred?

During a phase change, a substance receives or gives away heat. However, the temperature stays constant, since the energy is not used to increase the kinetic energy of the constituent molecules of the sub...

Answered by Leonard L. Physics tutor
4422 Views

Why would the National Grid limit the amount of fossil fuels we combust at peak times of energy demand?

What do we know about fossil fuels?

We know they have a high energy density upon combustion, hence why we've combusted them since the beginning of the industrial revolution to increase economic gro...

Answered by Tutor74731 D. Physics tutor
2615 Views

How do I make a free body diagram ?

To create a free body diagram, first you need to identify a body you are intrested in. Do you have it ? Great! Now lets draw this body isolated. I mean you don't want to include any object in its surrodin...

Answered by Mateusz M. Physics tutor
1543 Views

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