Question

a car is travelling with a constant speed of 30 metres per second what is the net force acting on it​

Answer 1

Answer:

• We're given that, a car is travelling with a constant speed of 30 m/s. If the velocity of the car is constant then it's Acceleration (a) must be 0 m/s²
• And it is said that, we need to find the net Force (f) acting on it.
• Force is a vector quantity, it have both magnitude as well as direction.
• S.I unit of Force is Newton (N).
• Due to unbalanced forces, the net force causes the body to have an Acceleration.
• Dimensional formula of Force is [M L T-²]
• By using Newton's second law of motion we can calculate the net force.

$\longrightarrow\rm FORCE = MASS \times ACCELERATION$

$\longrightarrow\rm FORCE = MASS \times 0$

$\longrightarrow \underline{ \underline{\rm FORCE = 0 \: N}}$

Answer 2

Given :-

• a car is travelling with a constant speed of 30 m/s.

=> If the velocity of the car is constant then it's Acceleration must be 0 m/s²

To find :-

The net Force acting on it.

Formula used :-

Newton's second law of motion

⟶FORCE = MASS × ACCELERATION

Solution :-

↣FORCE = MASS×0

↣FORCE = 0 N

Hence, the net force acting on the car is 0 N .