Question

Depending upon angle of inclination it will vary increase or decrease)
(iv) Can't be determined
SECTIONC
(All questions are compulsory. In case of internal choices, attempt any one)
17. A circular plate or uniform thickness has a diameter of 56 cm. A circular portion of diameter 42 cm
is removed from one edge of the plate. Find centre of mass of the remaining portion.
18. Derive an expression for magnitude of centripetal acceleration.
19. State four assumptions on which kinetic theory of gas is based.
20. Applying the first law of thermodynamics, derive Mayer's Formula.
OR
Derive the work done in case of an adiabatic process.
21. State and prove work-energy theorem for a variable force.
22. Differentiate between ductile and brittle materials on the basis of stress-strain curve.
OR
Prove Archimedes Principle.
23. Suppose the gravitational force varies inversely as the nih power of distance. Then, find the
expression for the time period of a planet in a circular orbit of radius r around the sun.
24. A bullet of mass 0.01 kg is fired horizontally into a 4 kg wooden block at rest on a horizontal
surface. The coefficient of the kinetic friction between the block and the surface is 0.25. The bullet
gets embedded in the block and the combination moves 20 m before coming to rest. With what
speed did the bullet strike the block?
OR
The rear side of a truck is open and a box of 40 kg mass is placed 5 m away from the open end. The
coefficient of friction between the box and the surface below it is 0.15. On a straight road, the truck
starts from rest and accelerates with 2 ms-2. At what distance from the starting point does the box
fall off the truck?
25. Derive by the method of dimensional analysis, an expression for the volume of a liquid flowing out
per second through a narrow pipe. Assume that the rate of flow of liquid depends on
the coefficient of viscosity n of the liquid
the radius r of the pipe and​

Answer 1

Answer:

what is angle of inclination okk