Problema Solution
the car moving on the straight on the road covers the distance (s) in a given time (t) ,find the speed and acceleration of the car at instant t=1sec
t(seconds)1 2 3 4
s(meters) 8 21 40 65
Answer provided by our tutors
distance = 8 covered
speed = 8/1
=8
acceleration = change in speed unit time
speed in t=2 sec =21-8 /1 =13
acceleration = 5 m/sec sq