Question

- A truck is of mass 50,000 kg. Its tyres exert a pressure of 2,500,000 Pa. The surface area of tyres in contact
with ground is (Take g = 10 ms^2).
(A) 2 m^2
(B) 0.2 m^2
(C) 2.5 m²
(D) 2.75 m²

plzz help me
with proper explanation​

Answer 1

Solution :

Given,

Mass (m) = 50 000 kg

Pressure (P) = 2,500,000 pa

Force (F) = ? , Area (A) = ?

We know that,

$\implies$ $\huge{\boxed{\sf{F= mg}}}$

So, we get:

$\implies$ F = 50 000 × 10

$\implies$ F = 5,00,000 N

And,

We know that,

$\boxed{\sf{Pressure = \frac{Thrust}{Area}}}$

So,

$\implies$ Area = Thrust / Pressure

$\implies$ Area = 5,00,000 / 25,00,000

$\implies$ Area = 1/5

That is:

$\implies$ Area = 0.2 sq. unit

Therefore,

Correct option: (B) $\sf{0.2\:m^{2}}$

_______________

Answered by: Niki Swar, Goa❤️

Answer 2

Answer:

Hey

Mate

Answer

Refer to the attachment