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Michaela H
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Homework Statement
a small truck of mass 2.00*10^3 kg traveling at 72.0km/h experiences a force of 1.00*10^4 N for 0.800 s, when the brakes are applied. What is the final velocity?
Hello Michaela H. Welcome to PF !Michaela H said:Homework Statement
a small truck of mass 2.00*10^3 kg traveling at 72.0km/h experiences a force of 1.00*10^4 N for 0.800 s, when the brakes are applied. What is the final velocity?
Homework Equations
The Attempt at a Solution
The formula for calculating final velocity of a truck under braking is Vf = Vi + at, where Vf is the final velocity, Vi is the initial velocity, a is the acceleration, and t is the time interval.
The weight of the truck does not directly affect the calculation of final velocity. However, a heavier truck may require a longer distance or a greater amount of force to come to a complete stop, which would impact the final velocity.
No, the final velocity of a truck under braking is not always zero. It depends on the initial velocity, acceleration, and time interval. If the initial velocity is high and/or the braking force is low, the final velocity may not be zero.
The final velocity is directly affected by the coefficient of friction between the truck's tires and the road. A higher coefficient of friction would result in a greater braking force, which would decrease the final velocity.
Yes, the final velocity of a truck under braking can be negative. This would occur when the truck is decelerating in the opposite direction of its initial velocity, such as when going downhill or when encountering a strong headwind.