Question

A car is moving with a straight with a velocity 10m/s changes its velocity to 30m/s in 5s​

Answer 1

Answer:

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nitial velocity  u=30  

i

^

 

Final velocity   v=40  

j

^

​  

 

Change in velocity  Δv=40  

j

^

​  

−30  

i

^

 

Magnitude    ∣Δv∣=  

30  

2

+40  

2

 

​  

=50

Average acceleration   a=  

Δt

∣Δv∣

​  

=  

10

50

​  

=5 m/s  

2