Question

if the velocity of a car is 45 km per hour west how far can it travelin 0.5 hour? please help me friends​

Answer 1

Given:

Velocity of a car is 45km/hr in the west direction.

To Find:

Distance covered in 0.5hr.

Concept Used:

We will use the formula of

${\underline{\underline{\boxed{\red{\sf{\leadsto Displacement=Velocity\times time}}}}}}$

Note:

This formula is only valid for non - accelerated motion.

Solution:

Using the above formula ,

we have

• Velocity =45km/hr west (v).
• Time =0.5hr (t).
• Displacement = ? (s)

$\sf{\leadsto s= vt}$

$\sf{\leadsto s= 45km/hr \times 0.5hr}$

$\sf{\leadsto s=45km/hr\times\dfrac{1}{2}hr}$

$\sf{\leadsto s=\dfrac{45}{2}km}$

$\sf{\leadsto s=\dfrac{\cancel{45}\:\:^{22.5}}{\cancel{2}}km}$

${\underline{\boxed{\purple{\bf{\longmapsto s=22.5km}}}}}$

Therefore the car will go 22.5km in 0.5hr.