Question
If an object is not stable then the resultant force acting on it will be zero or not?
✓
Answer
If the object is moving with constant velocity then the resultant force will be zero.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
A point charge q is placed in a cavity in a metal block. If a charge Q is brought outside the metal, will the charge q feel an electric force?
A graph of potential energy V(x) verses x is shown in a particle of energy E0 is executing motion in it. Draw graph of velocity and kinetic energy versus x for one complete cycle AFA.
A 50kg man is running at a speed of 18kmh-1. If all the kinetic energy of the man can be used to increase the temperature of water from 20°C to 30°C, how much water can be heated with this energy?
A man is standing on top of a building 100m high. He throws two balls vertically, one at t = 0 and other after a time interval (less than 2 seconds). The later ball is thrown at a velocity of half the first. The vertical gap between first and second ball is +15m at t = 2s. The gap is found to remain constant. Calculate the velocity with which the balls were thrown and the exact time interval between their throw.
One end of a string of length $l$ is connected to a particle of mass m and the other to a small peg on a smooth horizontal table. If the particle moves in a circle with speed v the net force on the particle (directed towards the centre) is :
(i) T$\quad$$\quad$(ii) $T -\frac{m v^2}{l}$$\quad$$\quad$(iii) $T +\frac{m v^2}{l}$$\quad$$\quad$(iv) 0
T is the tension in the string.
[Choose the correct alternative.]
→(i) T$\quad$$\quad$(ii) $T -\frac{m v^2}{l}$$\quad$$\quad$(iii) $T +\frac{m v^2}{l}$$\quad$$\quad$(iv) 0
T is the tension in the string.
[Choose the correct alternative.]
A piece of lead is hammered. Does its internal energy increase? Does the heat enter the lead from outside?
Do the following two graphs represent same type of motion? Name the motion.
Which is more elastic: rubber or steel?
A steel plate of face area 4cm2 and thickness 0.5cm is fixed rigidly at the lower surface. A tangential force of 10N is applied on the upper surface. Find the lateral displacement of the upper surface with respect to the lower surface. Rigidity modulus of steel = 8.4 × 1010N/m2.
Find the surface energy of water kept in a cylindrical vessel of radius 6.0cm. Surface tension of water = 0.075J/m2.