Question

Plz answer the correct answer. If you will spam you will be reported. Answer as fast as you can. ​

Answer 1

Question :

• A force of 50 Newton acts on a body of mass 5 kg for 4 seconds then the impulse of the force and acceleration of the body are

Given:

• force= 50 N

• mass of the body= 5 kg

• time taken = 4 sec

To find :

• impulse
• acceleration

Solution :

impulse of force acting on a body is given by the formula,

$\star \: \boxed {\large{\mathtt{I= f.t}}}$

here ,

• I = impulse
• f = force
• t = time

substituting the given values in the above equation we get,

$\rightarrow \mathtt{I = 50 \times 4}$

$\rightarrow \mathtt \red{I = 200 \: Ns}$

______________________________________

we know that ,

$\star \boxed{ \large \mathtt{f = ma}}$

here ,

• f = force
• m = mass
• a = acceleration

substituting the given values in the above equation we get,

$\rightarrow \mathtt{a = \dfrac{f}{m} }$

$\rightarrow \mathtt{a = \dfrac{50}{5} }$

$\rightarrow \mathtt \red{a = 10 \dfrac{m}{ {s}^{2} } }$

Answer 2

Given ,

• Force (f) = 50 N
• Mass (m) = 5 kg
• Time (t) = 4 sec

As we know that ,

The force which acts on a body for a short time is called impulse

Mathematically ,

$\boxed{ \sf{Impulse = F × t}}$

Thus ,

Impulse = 50 × 4

Impulse = 200 N-s

∴ The impulse of force is 200 N-s

Now , the force is defined as the product of mass and acceleration

$\boxed{ \sf{Force \: (F) = ma}}$

Thus ,

50 = 5 × a

a = 50/5

a = 10 m/s²

∴The acceleration of the body is 10 m/s²