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प्रश्न
Fill in the blank with suitable word :
1 joule is the work done when a force of 1 __________ moves an object through a distance of one __________ in the direction of __________.
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उत्तर
1 joule is the work done when a force of 1 Newton moves an object through a distance of one meter in the direction of force.
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संबंधित प्रश्न
How much work is done when a force of 1 N moves a body through a distance of 1 m in its own direction?
The work done by a force acting obliquely is given by the formula : W = F cos θ ✕ s. What will happen to the work done if angle θ between the direction of force and motion of the body is increased gradually? Will it increase, decrease or remain constant.
Name the force acting away from the centre of circular path.
Is power a scalar quantity?
Name the type of energy possessed by a
(i) stretched catapult (ii) hot iron
(iii) wound up clock
(a) Define power and name its unit.
(b) A girl weighting 50 kg climbs up 60 steps each of 20 cm height in 5 minutes. Calculate the power developed.
(i) A 200g ball is thrown vertically upward with an initial velocity of 30 ms-1. Draw a velocity-time graph for the motion of ball.
(ii) How long will the ball take to reach the highest point?
(iii) What will be the kinetic energy of ball, when it returns to the starting point, neglecting the air resistance?
(iv) What will be the potential energy of ball at highest point?
