Answer: <em>Hi bro!</em>
<u><em>Have a good day!</em></u>
- Initial velocity=u=30m/s
- Final velocity=v=10m/s
- Time=5s
![\\ \sf\longmapsto Acceleration=\dfrac{v-u}{t}](https://tex.z-dn.net/?f=%5C%5C%20%5Csf%5Clongmapsto%20Acceleration%3D%5Cdfrac%7Bv-u%7D%7Bt%7D)
![\\ \sf\longmapsto Acceleration=\dfrac{10-30}{5}](https://tex.z-dn.net/?f=%5C%5C%20%5Csf%5Clongmapsto%20Acceleration%3D%5Cdfrac%7B10-30%7D%7B5%7D)
![\\ \sf\longmapsto Acceleration=\dfrac{-20}{5}](https://tex.z-dn.net/?f=%5C%5C%20%5Csf%5Clongmapsto%20Acceleration%3D%5Cdfrac%7B-20%7D%7B5%7D)
![\\ \sf\longmapsto Acceleration=-4m/s^2](https://tex.z-dn.net/?f=%5C%5C%20%5Csf%5Clongmapsto%20Acceleration%3D-4m%2Fs%5E2)
Now
For the second question
Using 2nd equation of motion
![\\ \sf\longmapsto s=ut+\dfrac{1}{2}at^2](https://tex.z-dn.net/?f=%5C%5C%20%5Csf%5Clongmapsto%20s%3Dut%2B%5Cdfrac%7B1%7D%7B2%7Dat%5E2)
![\\ \sf\longmapsto s=30(3)+\dfrac{1}{2}(-4)(3)^2](https://tex.z-dn.net/?f=%5C%5C%20%5Csf%5Clongmapsto%20s%3D30%283%29%2B%5Cdfrac%7B1%7D%7B2%7D%28-4%29%283%29%5E2)
![\\ \sf\longmapsto s=90-2(9)](https://tex.z-dn.net/?f=%5C%5C%20%5Csf%5Clongmapsto%20s%3D90-2%289%29)
![\\ \sf\longmapsto s=90-18](https://tex.z-dn.net/?f=%5C%5C%20%5Csf%5Clongmapsto%20s%3D90-18)
![\\ \sf\longmapsto s=72m](https://tex.z-dn.net/?f=%5C%5C%20%5Csf%5Clongmapsto%20s%3D72m)
250 kg*m/s
Momentum is found by multiplying mass by velocity
25*10=250
<h3>Answer</h3>
1.1772 N
<h3>Step by Step Explanation</h3>
Given in the question,
mass of an object = 0.12 kg
To find the weight of this object we will use formula
weight = mass x acceleration due to gravity
We know that acceleration due to gravity on earth is constant = 9.81 m/s²
So,
weight = 0.12 x 9.81
= 1.1772 N
Since it is not mention that were the object is so i assume that it is on earth but if it is on moon then acceleration due to gravity will be 1.625 m/s²