Question

कृपया संक्षिप्त में उत्तर दें।
प्रश्न : A bus of mass 6800 kg rounds a curve of radius 670 m at 120 km/hour,,Calculate the centripetal force acting on it.
(A answer is expected soon.)​

Answer 1

Answer:

Given, m=1500kg

r=250m

v=90km/hr=

60×60

90×1000

=25m/s

Centripetal force F=

r

mv

2

=

250

1500×(25)

2

=3750N

Answer 2

Solution : Here, a/c to question,

• Mass of the car, m = 6800 kg

• Radius of the curve, r = 670 m

• Velocity of the car = 120 km/hour

First we have to convert velocity of the car into m/s.

➜ Velocity of the car = 120 km/hour

➜ Velocity of the car = (120 * 1000)/3600 m/s

➜ Velocity of the car = 120000/3600 m/s

➜ Velocity of the car = 1200/36

➜ Velocity of the car = 100/3 m/s

Defination of the centripetal force : centripetal force is the force required to provide centripetal acceleration to a particle to move it in a circular path.

Now,

➜ Centripetal force, F = mv²/r

➜ Centripetal force, F = {6800 * (100/3)²/670

➜ Centripetal force, F = {6800 * (10⁴/9)}/670

➜ Centripetal force, F = {(68 * 10⁶)/9}/670

➜ Centripetal force, F = (68 * 10⁶)/(9 * 670)

➜ Centripetal force, F = (68 * 10⁶)/6030

➜ Centripetal force, F = (68/603) * 10³

➜ Centripetal force, F = 0.1127694 * 10³

➜ Centripetal force, F = 112.7694 N

Answer : The centripetal force acting on the car is 112.7694 N.