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प्रश्न
The force of friction always acts ______ the motion.
विकल्प
along
against
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उत्तर
The force of friction always acts against the motion.
संबंधित प्रश्न
Give one example in the given cases:
A force stops a moving body
A body of mass 1.5 kg is dropped from a height of 12 m. What is the force acting on it during its fall? (g = 9.8 ms−2)
How much acceleration will be produced in a body of mass 10 kg acted upon by a force of 2 kgf?(g = 9.8 ms-2)
Two bodies have masses in the ratio 3 : 4 when a force is applied on the first body. it moves with an acceleration of 6 ms-2 . How much acceleration will the same force produce in the other body?
A body of mass 50g is moving with the velocity of 10 ms-1. It is brought to rest by a resistive force of 10 N Find.
1) the retardation and
2) the distance that the body will travel after the resistive force is applied.
When an elevator starts to move down suddenly we experience 'weightlessness'. Explain.
A body is acted upon by two forces of magnitude F, but in opposite directions. State the effect of the force if the two forces act at two different points of the body at a separation r.
Force acting on a given area is called pressure.
A mechanic unscrew a nut by applying a force of 140 N with a spanner of length 40 cm. What should be the length of the spanner if a force of 40 N is applied to unscrew the same nut?
The moon attracts Earth with a force of 1020 N, and then the force with which the Earth attracts the moon is ______.
