Physics
The mathematical expression of Newton's second law of motion is:
- F = m x v
- F = m x a
- F = pv
- F = m/a
Answer
F = m x a
Reason — On the basis of experiments Newton concluded that :
(i) The acceleration produced in a body of given mass is directly proportional to the force applied on it. i.e., a ∝ F (if mass remains constant)
(ii) The force needed to stop a given acceleration in a body is directly proportional to the mass of the body. i.e., F ∝ m (if acceleration remains the same).
Hence, F ∝ ma or F = Kma
Here, K is a constant and we get,
F = m x a
Related Questions
The acceleration produced in a body by a force of given magnitude depends on —
- size of the body
- shape of the body
- mass of the body
- None of these
According to Newton's second law, the acceleration produced in a body is:
- inversely proportional to the force applied on it
- directly proportional to the force applied on it
- not dependent on force
- none of these
For a given force F, the graph plotted for acceleration against mass is:
