The equilibrium position of objects in any field corresponds to situation of
equipotential energy
maximum potential energy
minimum potential energy
minimum kinetic energy
Correct answer is C
Potential energy = mgh = (mg)h = force × distance
⇒ 0 × d = 0
0.05kg
0.20kg
0.80kg
1.00kg
Correct answer is A
M\(_r\)(90 - 50) = 0.2(100 - 90)
40M\(_r\) = 0.2 × 10
| M\(_r\) | = | 2
40 |
= | 0.05kg |
20 m/s
30 m/s
40 m/s
50 m/s
Correct answer is C
From two parts 20m apart
a = 10m, x = 6m, A = 5
V = ω\(\sqrt{A^2 - X^2}\) = 5\(\sqrt{10^2 - 6^2}\) = 40m/s
The volume of a stone having an irregular shape can be determined using?
meter rule
measuring cylinder
vernier calliper
micrometer screw gauge
Correct answer is B
The volume of object is the same as the volume of liquid displaced in a container such as measuring cylinder.
II only
III only
I & IV only
II & III only
Correct answer is B
- I & II are in neutral equilibrium. They will roll continuously on the table
- III is a body with high centre of gravity (unstable)
- IV is a body with high centre of gravity (stable)