Hey there!
We are given ,
Acceleration, a = -2m/s^2
Initial velocity , u = 15m/s
Time , t = 5 seconds
We know that ,
V=u+at
Now , final speed ,
V = 15+(-2)(5)
V = 15-10
V = 5 m/s -> final speed
Hope this helps you dear :)
Have a good day <3
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Answer:
momentum of elephant will be more than the momentum of mouse
Explanation:
As we know that momentum is the product of mass and velocity
so we can write it as
here we know that a mouse is moving with speed 1 m/s
let say mass of mouse is m1 so we have
similarly now we know that elephant is moving with speed 3 m/s
now let say the mass of elephant is of mass m2 so
now we know that mass of elephant as well as speed of elephant both are more than mouse
so momentum of elephant will be more than the momentum of mouse