What is the deceleration of a bicycle that goes from 40m/s to 20m/s in 5 seconds

Explanation:

The acceleration of the bycicle is given by:

where

v = 20 m/s is the final velocity of the bike

u = 40 m/s is the initial velocity

t = 5 s is the time interval

Substituting numbers, we find

and the acceleration is negative, which means that the bycicle is slowing down.

yup its correct its: c) b b

graph slopes whilst gas cools, then it is flat whilst conensation to liquid happens, the coolong liquid then graphs as a slope when it solidifies graph is flat

latent heat