Question

a body of mass 5 kg is moving with a velocity of 10m/s. a force is applied to it so that in 25 sec, it attains a velocity of 35m/s. calculate the value of the force applied?

Answer 1

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Answer 2

Given :-

• Mass of body (m) = 5 kg
• Initial velocity (u) = 10 m/s
• Final velocity (v) = 35 m/s
• Time (t) = 25 sec

To Find :-

• Force applied = ?

Solution :-

First of all we have to find Acceleration (a)

→ Acceleration = Final Velocity - Initial Velocity/Time

→ a = v - u/t

→ a = 35 - 10/25

→ a = 25/25

→ a = 1 m/s²

Now, lets find the force applied on the body :

→ Force = mass × Acceleration

→ Force = 5 × 1

→ Force = 5 Newton

Therefore,force applied on the body is 5 N.

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Some other Formulas :

• Speed = d/t

• F = m. a

• a (bar) = v - v_0/t = Δv/Δt

• w = F x d

• P = W/Δt

• V = IR

• PE = mgh

• p = mv