Question

A body of mass 25 kg is at rest. A force of 100 N is applied to it. What will be the velocity of the body after 10 seconds ? What will be the distance covered by the body during this time?

Answer 1

Answer :

Given -

• Mass = 25 kg
• u = 0 m/s
• F = 100 N
• t = 10 seconds

To Find -

• Distance covered by the body.

Solution -

We know that, Force = ma.

So, 100 = 25*a

⇒ Acceleration = 100/25

⇒ Acceleration = 4 m/s²

Now, Using the second equation of motion :

⇒ s = ut + ½at²

⇒ s = 0*10 + ½*4*10²

⇒ s = 0 + 2*100

⇒ s = 200 m

Hence, The distance covered by the body during this time = 200 m.

Answer 2

$\rule{200}3$

$\huge\tt{SOLUTION:}$

• A body of mass 25 kg is at rest.
• A force of 100 N is applied to it.

$\rule{200}3$

$\huge\tt{TO~FIND:}$

• What will be the velocity of the body after 10 seconds ?
• What will be the distance covered by the body during this time?

$\rule{200}3$

$\huge\tt{SOLUTION:}$

Using the value for force = ma

So,

➠100 = 25 a

➠Accelaration = 100/25

➠Accelaration = 4 m/s²

Using the second equation of motion,

➠s = ut + ½ at²

➠s = 0 × 10 + ½ × 4 × 10²

➠s = 0 + 2 × 100

➠s = 200 m

Hence, the distance is 200 m

$\rule{200}3$