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I have calculated magnitude of acceleration of an object slowing to a stop to be:

-5.1m s^-1.

I then had to find the magnitude of the unbalnced force applied to the object for it to stop which i found to be:

So F= 1500 kg * 5.1 m s^-2

Which equals 7650kg m s^-2

Which equals 7650 N

I have assumed this answear would have to be positive. so would this mean my answear in the first part should be positive and described as decelerating ?

Any help would be most welcome!

-5.1m s^-1.

I then had to find the magnitude of the unbalnced force applied to the object for it to stop which i found to be:

So F= 1500 kg * 5.1 m s^-2

Which equals 7650kg m s^-2

Which equals 7650 N

I have assumed this answear would have to be positive. so would this mean my answear in the first part should be positive and described as decelerating ?

Any help would be most welcome!

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