Question

it's urgent please answer it
a wheel make 360 revolutions in 2 minutes then how many radians does it turn in 5 seconds?​

Answer 1

Answer:

each revolution contains of 2π radians

so it turns 2π×360 radians in 2 mins

720π-----> 2×60secs

x ------> 5secs

using direct proportionality

x=720π×5/120

x=30π radians

therfore in 5secs the wheel turns 5radians

Answer 2

15 revolutions

Given:

A wheel makes 360 revolutions in 2 minutes.

Since,1 minute=60 seconds

2minutes=60×2=120 seconds

Revolutions made in 1 second=360 divided by 120

=3

Since, the wheel makes 3 revolutions in 1 second.

Hence, it will make 3×5seconds=15 revolutions in 5 seconds.