From the following pairs, choose the pair that does not have identical dimensions:
Correct answer: B. Moment of inertia and moment of force
- A. Angular momentum and Planck constant:
- B. Moment of inertia and moment of force
- C. Work and torque
- D. Impulse and momentum
Explanation
Correct. Moment of inertia has dimensions \(kg \cdot m^2\), and moment of force has dimensions \(N \cdot m\)In summary, the correct option is **b. Moment of inertia and moment of force** for the pair that does not have identical dimensions
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Force and Motion
Displacement, velocity and acceleration describe motion, including the horizontal and vertical components of projectile motion. The chapter connects these quantities with Newton's laws, momentum and impulse, then applies conservation of momentum to collisions, distinguishing elastic collisions from inelastic ones.
Practise Force and Motion
1,416 free Force and Motion MCQs from Physics, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Physics questions like this
Physics is on 16 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Force and Motion questions
The escape velocity from the earth's surface is 11km/s. A certain planet has a radius twice that of the earth but its mean density is the same as that of the earth. The value of the escape velocity from this planet would be
A ball is just allowed to fall from the window of a moving train it will hit the ground following
The escape velocity from the earth's surface is 11km/s. A certain planet has a radius twice that of the earth but its mean density is the same as that of the earth. The value of the escape velocity from this planet would be
A shot leaves a gun at the rate of 160m/s. Calculate the greatest distance to which it could be projected and the height to which it would rise: (g=10 m/s2)
A particle is projected at an angle of 45 degrees with a velocity of 9.8 m/s. The horizontal range will be: (g=9.8 m/s2)
A plane with its engines off is moving with speed v at a height of h in the horizontal direction. The time taken to reach the ground is: