A child has a toy car on a horizontal platform .the car starts from rest and reaches a maximum speed in 4s if the mass of the car is 0.1kg and engine has an effective pull of 0.4N find the acceleration and the maximum speed of the car
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The acceleration is 4 m/s^2 and maximum speed is 16 m/s.
Explanation:
We are given:
Initial velocity = 0 m/s
Mass of the car = 0.1 Kg
Force = 0.4 N
As we know that
F = ma
0.4 = 0.1 x a
a = 0.4 / 0.1 = 4 m/s^2
Now by using first equation motion velocity can be determined.
v = u + at
V = 0 + 4 x 4
V = 16 m/s
Hence the acceleration is 4 m/s^2 and maximum speed is 16 m/s.
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