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प्रश्न
Define the term momentum.
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उत्तर
The momentum of a body is the product of the mass of the body and its velocity, i.e. p = mv.
संबंधित प्रश्न
A uniform meter scale is in equilibrium as shown in the diagram :
(i) Calculate the weight of the meter scale.
(ii) Which of the following options is correct to keep the ruler in equilibrium when 40 gf wt is shifted to 0 cm mark ?
F is shifted towards 0 cm
or
F is shifted towards 100 cm
State the principle of moments. A meter scale is pivoted at 30 cm mark and it is in equilibrium when a mass of 40 g is suspended from 10 cm mark. Calculate the mass of the ruler.
State the principle of moments. A meter scale is pivoted at 30 cm mark and it is in equilibrium when a mass of 40 g is suspended from 10 cm mark. Calculate the mass of the ruler.
Give scientific reason for the following:
When a man climbs a slope he bends forward.
The arms of a beam balance are 20 cm and 21 cm, but the pans are of equal weight. By the method of double weighing the weights are found to be 1000 g and 20 g. Find the actual weight of the body
Explain why It is easier to knock down a boy who is standing on one foot than one who is standing on two.
State two conditions when the work done by a force acting on a body is zero.
What is meant by equilibrium?
What is a couple?
Explain the types of stability with suitable examples.
