Question

________ is the distance travelled by a body in a particular direction in unit time. *

1 point

a. Speed

b.velocity

c. Displacement

d. None of these

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Answer 1

Answer:

displacement..... do follow me

Answer 2

Answer:

b) Velocity

MORE TO KNOW -

• Velocity - It is the distance travelled by an object in a unit time in a specific direction.

• It is a vector quantity.

• S.i Unit - m/s

• ways in which velocity can be changed

i) when speed is changed.

ii) When direction is changed.

iii) When both are changed.

• Velocity is always smaller than speed.

• Rate of change of velocity = acceleration.

• Velocity can be positive , negative or zero.

• if an object ravels in a circle , its velocity continues to change as the direction is changing continously.

• More terms -

i) Distance - Total path traveled by an object

ii) Displacement - Distance between initial and final position.

iii) Speed - Distance travelled by object in unit time.

iv) Acceleration - Rate of change of velocity.

v) Motion - Change in position of an object with respect to its refference and surrounding.

Equation of motion -

i) V= u + at

ii) S = ut + 1/2 at^2

iii) V^2 - u^2 = 2as