A force of 10 N is acting on a body of mass 20 kg for 10 seconds . Find change in its momentum .
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Answered by
3
change in momentum(Δp) = 1 N/sec
HOW ???
F= mass(m) x acceleration(a)
Velocity(v)= Δa/Δt
So, applying F=ma, we get a=1/2...
Now, we know Momentum(p) = mv = m. (Δa/Δt)
By putting values we will get Δp = mΔv= 20 x5 = 100 N/sec
HOW ???
F= mass(m) x acceleration(a)
Velocity(v)= Δa/Δt
So, applying F=ma, we get a=1/2...
Now, we know Momentum(p) = mv = m. (Δa/Δt)
By putting values we will get Δp = mΔv= 20 x5 = 100 N/sec
Agnishupadhyay:
But I want it in kg m/s
okie
Answered by
9
Force = mass × acceleration.
= mass × change in velocity/time
10 = 20 × change in velocity/ 10
⇒ change in velocity = 10 × 10 / 20
= 5 m/s
Change in momentum = mass × change in velocity
= 20 × 5
= 100 kg.m/s
= mass × change in velocity/time
10 = 20 × change in velocity/ 10
⇒ change in velocity = 10 × 10 / 20
= 5 m/s
Change in momentum = mass × change in velocity
= 20 × 5
= 100 kg.m/s
But plz just tell me how to answer questions
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