Question

a force of 4kg wt acts on a body of mass 9.8kg calc the acceleration taking g 9.8m/s

Answer 1

Answer:

x = -4 ± √4² – 4 (1)(4) / 2(1)

x = -4 ± √ 16 – 4(4) / 2

x = -4 ± √16 – 16 / 2

x = -4 ± √ 0 / 2

x = -4 / 2 whats x?

Answer 2

Given :-

Weight of the force = 4 kg

Mass of the body = 9.8 kg

To Find :-

The acceleration of the body.

Analysis :-

Here we are given with the mass and the force of the body.

In order to find the acceleration of the body, first multiply the weight of the force into the gravity.

Then substitute the values such that force is equal to mass multiplied by the acceleration and find the acceleration accordingly.

Solution :-

We know that,

• f = Force
• g = Gravity
• m = Mass
• a = Acceleration

Using the formula,

$\underline{\boxed{\sf Force = Mass \times Gravity}}$

Given that,

Mass (m) = 4 kg

Gravity (g) = 9.8 m/s

Substituting their values,

⇒ f = mg

⇒ f = 4 × 9.8

⇒ f = 39.2

Using the formula,

$\underline{\boxed{\sf Force=Mass \times Acceleration}}$

Given that,

Force (f) = 39.2 N

Mass (m) = 4 kg

Substituting their values,

⇒ f = ma

⇒ 39.2 = 4 × a

⇒ a = f/m

⇒ a = 39.2/4

⇒ a = 4 m/s

Therefore, the acceleration of the body is 4 m/s.