PHYSICS- GRAVITATION A hydrogen balloon released on the moon A)Climbs up with an acceleration 6x9.8ms_-2 B)Climbs up with an acceleration of 9.8/6ms_-2 C)Bursts D)Falls with an acceleration of 9.8/6 ms_-2

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Q. A monkey of mass 40 kg climbs on a rope (Fig. 5.20) which can stand a maximum tension of 600 N. In which of the following cases will the rope break: the monkey (a) climbs up with an acceleration of 6 m s¯² (b) climbs down with an acceleration of 4 m s¯² (c) climbs up with a uniform speed of 5 m s¯¹ (d) falls down the rope nearly freely under gravity? (Ignore the mass of the rope).

A monkey of mass

40

k g

climbs on a rope which can stand a maximum tension of

600

N

. In which of the following cases will the rope break. When the monkey

(a) Climbs up with an acceleration of

6

m s^{- 2}

(b) Climbs down with an acceleration of

4

m s^{- 2}

5

m s^{- 1}

(d) Falls down the rope nearly freely under gravity.

(Ignore the mass of the rope)

A balloon with it's contents weighing 160N moving down with an acceleration of g/2 ms^-2. The mass removed from it so that the balloon moves up with an acceleration of g/3ms^-2 is

A monkey of mass 20kg climbs on a rope which can stand a maximum tension of 300 N.in which of the following cases the rope breaks? The monkey

Options

Climbs up with an acceleration of 6m/s2

Climbs up with a uniform speed of 5m/s

Climbs down with an acceleration of 4m/s2

Falls down the rope nearly freely under gravity

Ans :1st option

Q. A body of mass

0.05 k g

is observed to fall with an acceleration of

9.5 m s^{- 2}

.The opposing force of an air on the body is

(g = 9.8 m s^{- 2})

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