Question

an automobile vehicle has a mass of 1500 kg what must be the force between the vehicle and the road if vehicle is stopped with negative acceleration of -1.7 m/s

Answer 1

$\textbf{\underline{\underline{According\:to\:the\:Question}}}$

★Given

m = 1500 kg (Mass of automobile)

a = -1.7 m/s² (Acceleration of vehicle)

★To Find :-

F = ? (Force applied on vehicle)

★Solution :-

${\boxed{\sf\:{Force = Mass\times Acceleration}}}$

F = 1500 × (-1.7)

F = -2550

F = -2550 Newton

★Here :-

★We get (-) sign which shows that force is acting in opposite direction to the motion of vehicle.

$\boxed{\begin{minipage}{11 cm} Additional Information \\ \\ \ Final\;Velocity=Initial\; velocity+Acceleration\times Time \\ \\ Momentum = Mass\times Velocity \\ \\ Force=Mass\times Acceleration \\ \\ Force = \dfrac{Change\;in\;Momentum}{Time\;Interval} \\ \\ Impulse = Force\times Time \end{minipage}}$

Answer 2

Answer:

Solution:Mass of the automobile vehicle, m= 1500 kg

Final velocity, v= 0 (finally the automobile stops)

Acceleration of the automobile, a= ˆ’1.7 msˆ’2

From Newton€™s second law of motion:

Force = Mass x Acceleration = 1500 x (ˆ’1.7) = -2550 N

Hence, the force between the automobile and the road is -2550 N, in the direction opposite to the motion of the automobile.

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