Question

a body of mass 500gm revolves in a horizontal cirlce of radius 1 m at speed of 5 ms^-1 calulate the centripetal force force acting on the body​

Answer 1

༒Answer :-

• 12.5 N

༒Given :-

• Mass of the body is 500g
• Speed of the body is 5 m/s
• Radius is 1 m

༒To find :-

• Centripetal force

༒ Solution:-

• We have formula to find the centripetal force that is

Fç = mv²/r

where,

• m = mass of the body
• v is velocity
• r is radius

__________________

As they given mass in grams Convert into kilograms

1 kg = 1000 g

1 gram = 1/1000 kg

500 grams = 500/1000 kg

= 1/2 kg

= 0.5 kg

So,

500grams = 0.5 kg

Now , substituting the values ,

Fç = mv² /r

= 0.5 (5)² / 1

= 0.5(25)

= 5 /10 × 25

= 1/2 × 25

= 25/2

= 12.5 N

So, centripetal force acting on the body is 12.5 N