Question

calculate the force needed to speed up a car with a rate of 5ms²,if the mass of the car is 1000kg​

Answer 1

Answer:

GIVEN:

Accleration (a) = 5ms^-2

Mass (m) = 1000kg

Force (F) = ?

SOLUTION:

Force = Mass × Acceleration

= 1000×5

= 5000N

therefore the force needed to speed up the car is 5000N

Explanation:

Answer 2

Answer:

Explanation:

Force=mass×acceleration (or)Force= mass×deceleration,

acceleration=(change in velocity)/time

intervalInitial velocity=5m/s

Final velocity=0 m/s

Time interval=2s

Therefore, acceleration=(0-5)/2=-2.5m/s^2Therefore deceleration=2.5m/s^2(Acceleration= -(deceleration))For car:Mass=1000kgForce=mass×deceleration=1000×2.5=2500NFor truck: Mass=10000kgForce=10000(2.5) =25000N

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