Question

an object of mass 100kg is accelerated uniformly from a velocity of 5m/s to 8m/s in 6s. Calculate the inertia and find momentum of the object. Also find the magnitude of force exerted on the object

Answer 1

ʜᴏᴩᴇ ɪᴛ ʜᴇʟᴩꜱ...........

Answer 2

$Here \: is \: the \: answer \: of \: your \: question$

According to question we have given,

m = 100 kg

u = 5 m/s

v = 8 m/s

t = 6 s

Initial moment = ?

Final momentum = ?

Force = ?

Now,

Initial momentum = m u

= 100 × 5

`$\textbf{= 500 kg m/s}$`

Final momentum = m v
= 100 × 8

`$\textbf{= 800 kg m/s}$`

Now,

Force required = Rate of change of momentum ÷ time taken

[Rate of change of momentum = final momentum - initial momentum]

= 800 - 500 ÷ 6

= 300 ÷ 6

`$\textbf{= 50 N}$`