acceleration is a vector quantity. choose the best answer below for particle acc

ID: 1523225 • Letter: A

Question

acceleration is a vector quantity. choose the best answer below for particle acceleration along the x-axes (or y-axes) only.

a) Vector is always positive

b) vector is always negative

c) this vector can be both positive, and negative at any instant of time

d) it is either positive or negative at any instant of time.

2) velocity is a vector quantity. fr this vector to change. it must change in.

a) magnitude only

b) direction only

c) both in magnitude and/or direction

d)it cannot change once the particle is set into motion

Vector consists of magnitude and direction where sign represents the direction.

Vector can only have 1 direction thus correct answer is:

1) d) it is either positive or negative at any instant of time.

Vector changes if either magnitude or direction changes since it represents both magnitude and direction

hence correct answer is:

2) c) both in magnitude and/or direction

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