Question

Height and Temperature
At the peak of summer, some people
go from the plains to hilly places such as
Ooty or Shimla to avoid the heat. Even in
the summer months, the temperatures are
low on high hills. The highest parts of a
mountain generally have the lowest
temperatures. Temperature decreases with
elevation (height).
Look at the graphs showing the average
monthly temperatures of Delhi and Shimla.
You can see quite clearly that in each month
of the year, the temperature of Shimla is
far lower than that of Delhi.
Delhi is at an elevation (height) of about
200 metres above sea level, while Shimla
is at an elevation of about 2200 metres
above sea level. Usually, for every 1000
meters increase in elevation, the
temperature falls by about 6.4°C.
comment on it​

Answer 1

Answer:

__________

v = final velocity

u = initial velocity

s = Distance

a = Acceleration

__________

✨ First case,

v = 0 m/s

u = 10 m/s

s = 20 m.

➡️ v^2 = u^2 + 2as

Or, 0 = 100 + 40a

Or, a = - 100 /40 = - 5/2.

.°. a = - 5/2 m/s^2

___________

✨Second case,

v = 0 m/s

u = 20 m/s

a = - 5/2 m/s^2

➡️ v^2 = u^2 + 2as

Or, 0 = 400 - 5s

Or, s = 400/5 = 80.

.°. The stopping distance will be 80 m.

___________

Thanks..