PHYSICS
JAMB 2011 - Question 6
Physics 2011 JAMB Past Questions - Question 6: An object of mas 2kg moves with a velocity of 10ms¹ round a circle of radius 4c . calculate the centripetal force on the object
Choose the correct answers from the options given.
A:
B:
C:
D:
Correct Answer
A
Explanation
F = MV²/r =2 X10²/4 =50NTo calculate the centripetal force on an object moving in a circle, you can use the formula for centripetal force:
F = (m * v^2) / r
Where:
- F is the centripetal force.
- m is the mass of the object (2 kg in this case).
- v is the velocity of the object (10 m/s).
- r is the radius of the circle (4 m).
Now, plug in the values into the formula:
F = (2 kg * (10 m/s)^2) / 4 m
F = (2 kg * 100 m^2/s^2) / 4 m
F = 200 kg m^2/s^2 / 4 m
F = 50 N
So, the centripetal force on the object is 50 Newtons.
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