Question

Calculate the k. E with
the
object
500g will strike the ground
when raised to a height of 225
of mass​

Answer 1

Explanation:

Any object of mass 500g is dropped from a tower of height 5m. How would you calculate its momentum when it touches the ground?

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Mass of the object : 500g=0.5 kg=m

Height,s =5 m

Acceleration due to gravity=10 m/s^2=a

Initial velocity of object(from point where it is dropped=0m/s=u

Therefore, we need to find final velocity of object, so here we go

According to motion formula,

2as=v^2-u^2

2as+u^2=v^2

(2×5×10)+(0×0)=v^2

√100=v

v=10 m/s

Now, momentum=velocity ×mass

=0.5×10=5 kg m/s