An object with a mass of #4 kg# is moving at #7 m/s# over a surface with a kinetic friction coefficient of #3 #. How much power will it take to accelerate the object at #4 m/s^2?
So, from equation of force,we can write,
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The power required to accelerate the object at 4 m/s^2 is 28 watts.
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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
- If a #2 kg# object is constantly accelerated from #0m/s# to #16 m/s# over # 9 s#, how much power musy be applied at #t=7#?
- An object with a mass of #2 kg# is moving at #5 m/s# over a surface with a kinetic friction coefficient of #3 #. How much power will it take to accelerate the object at #8 m/s^2?
- If a #2 kg# object is being constantly accelerated from #0m/s# to #15 m/s# over # 6s#, how much power is being applied at #t= 3 #?
- An object with a mass of #6 kg# is hanging from an axle with a radius of #9 m#. If the wheel attached to the axle has a radius of #18 m#, how much force must be applied to the wheel to keep the object from falling?
- A 1200-kg automobile travels at 90.0 km/h. What net work would be required to bring it to a stop?

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