When a force of 1 newton acts on a mass of 1 kg which is able to move

When a force of 1 newton acts on a mass of 1 kg which is able to move freely, the object moves in the direction of force with a/an

speed of 1 km/s
acceleration of 1 m/s²
speed of 1 m/s
acceleration of 1 km/s²
This question was previously asked in
UPSC NDA-2 – 2016
The correct answer is B. According to Newton’s Second Law of Motion, the force (F) acting on an object is equal to the mass (m) of the object multiplied by its acceleration (a): F = m × a.
Given F = 1 Newton (N) and m = 1 kg, we can calculate the acceleration:
a = F / m
a = 1 N / 1 kg
The unit of Newton is defined as 1 kg·m/s².
So, a = (1 kg·m/s²) / 1 kg = 1 m/s².
The object will move in the direction of the force with an acceleration of 1 m/s².
Acceleration is the rate of change of velocity. A constant force acting on a mass produces a constant acceleration. The object’s speed will increase by 1 meter per second every second, starting from rest or its initial velocity. Options A and C refer to speed, not acceleration, and D uses incorrect units (km/s²).
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