Question

The diameter of the wheel of avehicle is 0.63 m how many rotations will a wheel complete while travelling a distance of 1km 980m​

Answer 1

Answer:

The number of rotation a wheel complete to cover 1980 m is 1000.

Step-by-step explanation:

Given that:

• The diameter of the wheel of a vehicle is 0.63 m.

→ Radius of wheel = 0.63/2 = 0.315 m

Converting distance 1 km 980 m into m:

• 1 km = 1000 m
• 1 km 980 m = (1000 + 980) m = 1980 m

To Find:

• Number of rotation a wheel complete.

Formula used:

• Number of rotation = (Total distance)/(Circumference of wheel)
• Number of rotation = (Total distance)/(2πr)

Finding the number of rotation a wheel complete to cover 1980 m:

• Number of rotation = (1980)/(2 × π × 0.315)
• Number of rotation = (1980 × 7)/(22 × 0.63)
• Number of rotation = 1000

Answer 2

Answer:

Given :-

• Diameter of wheel = 0.63 m
• Distance = 1.980 km

To Find :-

Rotation made

Solution :-

We know that

$\tiny \sf \: 1 \: km = 1000 \: m$

1.980 km = (1 × 1000) + 980

=> 1000 + 980

=> 1980 m

Now,

Also we know that

$\tiny \sf \: Radius = \dfrac{D}{2}$

Radius = 0.63/2

=> R = 0.315 m

Now,

Numbers of rotation = Distance/Circumference

$\tiny \sf \: Circumference = 2\pi r$

=> 1980/(2 × 3.14 × 0.315)

=> 1980/(6.28 × 0.315)

=> 1980/1.98

=> 1000