The work done in lifting an object to a height of 2 m is equal to two times the weight of the object. W = 2×mg
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Explanation:</h3>
Consider the mass of object to be m kg. The amount of work done to lift an object depends on the force required and the distance to which force is applied. To lift the object to a height of 2 m; Let F be the amount of force applied.
..................(1)
Where,
W=Work done
F= Amount of applied force
h=Height to which object is to be lifted
Applied force is equal to the weight of the object. Therefore,
..............(2)
Where,
m=Mass of the object
g=gravitational acceleration
Substituting (2) in (1), we get
![W=m\times g\times h](https://tex.z-dn.net/?f=W%3Dm%5Ctimes%20g%5Ctimes%20h)
For height = 2 m, ![W = m\times g\times 2](https://tex.z-dn.net/?f=W%20%3D%20m%5Ctimes%20g%5Ctimes%202)
![W=2\times m\times g = 2\times Weight\ of\ object](https://tex.z-dn.net/?f=W%3D2%5Ctimes%20m%5Ctimes%20g%20%3D%202%5Ctimes%20Weight%5C%20of%5C%20object)
The work done in lifting an object to a height of 2 m is equal to twice the weight of the object.
Answer:
It's not what happens to you. It's A.) how you face it
Explanation:
B! Conduction is touch, so the heat traveled through touch from th stove to the ice cube, therefore melting it
Answer: 1433.3 m/min
Explanation:
For 86 Km/h converted to a (m/min), convert kilometers to meters, and hour to minutes
So, 86 Km/h means 86 kilometers per 1 hour
- If 1 kilometer = 1000 metres
86 kilometers = 86 x 1000 = 86,000m
- If 1 hour = 60 minute
1 hour = 60 minutes
In m/min: (86,000m / 60 minute)
= 1433.3 m/min
Thus, 86 Km/h convert to 1433.3 m/min