Question

An object of mass 2 kg is accelerated uniformly from a velocity of 5 ms

to 25 m s in 10 s. Calculate​

Answer 1

Answer:

Here,

Mass = m = 2kg

Acceleration = a = 5m/s

Therefore,

Force acting on the object

= Mass (a) × Acceleration (a)

= 2kg × 5m/s

= 10 N

Answer 2

Question :-

An object of mass 2 kg is accelerated uniformly from a velocity of 5 m/s to 25 m/s in 10 s. Calculate Force exerted

Answer -

Given :-

• Mass, m = 2 kg
• Initial velocity, u = 5 m/s
• Final velocity, v = 25 m/s
• Time, t = 10 sec

To Find :-

• Force exerted

Solution :-

• $\rm m = 2 kg$
• $\rm u = 5 m/s$
• $\rm v = 25 m/s$
• $\rm t = 10 sec$

Substituting the value in formula :-

➱ $\rm F = m\Bigg(\dfrac{v-u}{t}\Bigg)$

➱ $\rm F = 2 \times \frac{25 - 5}{10}$

➱ $\rm F = 2 \times \frac{2 \cancel 0}{1 \cancel 0}$

➱ $\rm F = 2 \times 2$

➱ $\rm F = 4$