Question

9.Which of the following is a vector?

a)work
b)acceleration
c)speed
d)mass​

Answer 1

Answer:

Vector quantity has both magnitude & direction. For example distance, speed, time, temperature , work, energy, charge, voltage are all scalar quantities. Displacement, velocity, acceleration, force, electromagnetic field are all vector quantities.

Answer 2

b) acceleration is a vector quantity.

• Vector quantity has both magnitude and direction.
• The physical quantity which has only magnitude is a scalar quantity.
• Acceleration is a vector quantity because it has both magnitude and direction.
• Acceleration is a change in the direction of velocity or change in magnitude of velocity or both.
• It is also determined by the ability of a body to aquire speed.