The mass of the block is 920 kg.
The angle of inclination of the slope with respect to the plane is 30 degree.
The initial speed of the block [u] =50 cm/s
=50×0.01 m/s
=0.5 m/s
The block is once pushed and it moves downward on the slope. The distance of the block from the bottom is 2.3 m .
Hence the distance travelled by the block [s]=2.3 m
We are asked to calculate the final velocity of the block when it touches the ground.
First we have to calculate the acceleration of the block.
Resolving g into horizontal and vertical component we get,
![[1] gsin\theta\ is\ along\ the\ slope\ and\ downward](https://tex.z-dn.net/?f=%5B1%5D%20gsin%5Ctheta%5C%20is%5C%20along%5C%20the%5C%20slope%5C%20and%5C%20downward)
![[2] gcos\theta\ is\ along\ the\ normal\ drawn\ to\ the\ block](https://tex.z-dn.net/?f=%5B2%5D%20gcos%5Ctheta%5C%20is%5C%20along%5C%20the%5C%20normal%5C%20drawn%5C%20to%5C%20the%5C%20block)
Now putting the equation of kinematics we get-
Here v is called final velocity and a is the acceleration.
![=[0.5]^2+2*gsin\theta *2.3](https://tex.z-dn.net/?f=%3D%5B0.5%5D%5E2%2B2%2Agsin%5Ctheta%20%2A2.3)
![=0.25+[2*9.8*0.5*2.3]](https://tex.z-dn.net/?f=%3D0.25%2B%5B2%2A9.8%2A0.5%2A2.3%5D)
[sin30=0.5]
[ans]
Answer:
Explanation:
Pressure can be defined as the force per unit area hence there is an inverse relationship between pressure exerted by a substance and the area of that substance. For instance,
(1) if a bag of sand if filled with sand and an individual steps on this bag. The feet of he individual will form no shape/displace little sand sideways in the bag. But if the same quantity of sand is poured in a bigger bag (larger area) and the same individual stands on the bag, the feet of the individual will "sink" (decreased pressure from the bag) displacing some sand sideways.
(2) The straps of a bag are made wide (and not slim) so that the bag can exert lesser pressure on the shoulders when the same quantity of load is carried by the bag than if the straps were made narrow/slim.
True, p1/t1=p2/t2. Pressure is related to temperature at which it boils so pressure does affect the boiling point.
<span>A trade embargo on China would limit the imports or exports of goods. A trade embargo would create economic pressure on the Chinese government and influence the Chinese government's foreign or domestic policy. A trade embargo would encourage China to stop certain policies or actions in order to lift the embargo.</span>
Large bodies of water<span> such as oceans, seas, and large lakes </span>affect<span> the </span>climate<span> of an area. </span>Water<span> heats and cools more slowly than land. Thus, in the summer, the </span>coastal<span> regions </span>will<span> stay cooler and in winter warmer. A more moderate </span>climate<span> with a smaller temperature range </span>is<span> created.</span>
