Question

acceleration can be negative or positive depending upon the motion of a body. give examples from daily life to explain the statement.

Answer 1

Answer:

positive- when we raise speed of car, then final velocity is greater than initial velocity ,.

So, a=v-0 is positive

t

negative- when we apply breaks

then body comes in rest and final velocity becomes zero.

So, a = 0-u

t

So, aaceleration is negative.

Hope u got it!

Answer 2

Answer:

Yes acceleration can be positive or negative ...

Explanation:

for eg. when you apply brakes in car, bikes or bus then the opposite force acts on the wheel causes deacceleration and the vechile stops...