Question

Choose the correct alternative



(a) The acceleration of a moving particle is always in the direction of its velocity

(b) Velocity and acceleration vectors of a moving particle may have any angle between 0 and 360 between them

(c) Velocity and acceleration vectors of a moving particle may have any angle between 0 and 180 between them

(d) If the acceleration vector is always perpendicular to the velocity vector of a moving particle, the velocity vector does not change

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Answer 1

Answer:

4.is the answer ok mate

Answer 2

(b) Velocity and acceleration vectors of a moving particle may have any angle between 0 and 360.

Explanation:

• Acceleration and velocity vectors can have any angle between them. So, it is a correct statement that the angle between velocity vector and acceleration vector maybe 0 to 360, as the body is moving at every instance it is possible that the angle between them changes continuously.
• The acceleration vector is perpendicular to the velocity vector in the case of the circular motion of a moving body. the angle will be changing.
• The acceleration of a moving particle may or may not be in the direction of its velocity. we can take the example of gravitational acceleration when the body is going upward and downward.

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