What is the speed of a body which is at rest?

Q. Explain that a body can have zero average velocity but non zero average speed.

Q. Which of the following definite intergrals have a non zero value

Q.

Read each statement below carefully and state with reasons and examples, if it is true or false;
A particle in one-dimensional motion
a) with zero speed at an instant may have non-zero acceleration at that instant
b) with zero speed may have non-zero velocity,
c) with constant speed must have zero acceleration,
d) with positive value of acceleration must be speeding up.

Q. Can a body have
a.Zero instantaneous velocity and yet be accelerating?
b.Zero average speed but non-zero average velocity?
c.Negative acceleration and yet be speeding up?
d.The magnitude of average velocity be equal to average speed?

Q. Read each statement below carefully and state with reasons and examples, if it is true or false:
A particle in one-dimensional motion
(a) with zero speed at an instant may have non-zero acceleration at that instant.
(b) with zero speed may have non-zero velocity.
(c) with constant speed must have zero acceleration.
(d) with positive value of acceleration must be speeding up.