AIPMT 2003 | Laws of Motion Question 42 | Physics

A man weight 80 kg. He stands on a weighting scale in a lift which is moving upwards with a uniform acceleration of 5 m/s². What would be the reading on the scale ? (g = 10 m/s²)

zero

400 N

800 N

1200 N

AIPMT 2002

MCQ (Single Correct Answer)

-1

An object of mass 3 kg is at rest. Now a force of $$\overrightarrow F $$ = 6t² $$\widehat i$$ + 4t $$\widehat j$$ is applied on the object then velocity of object at t = 3 sec. is

18$$\widehat i$$ + 3$$\widehat j$$

18$$\widehat i$$ + 6$$\widehat j$$

3$$\widehat i$$ + 18$$\widehat j$$

18$$\widehat i$$ + 4$$\widehat j$$

AIPMT 2002

MCQ (Single Correct Answer)

-1

A block of mass 10 kg placed on rough horizontal surface having coefficient of friction m = 0.5, if a horizontal force of 100 N acting on it then acceleration of the block will be

10 m/s²

5 m/s²

15 m/s²

0.5 m/s².

AIPMT 2002

MCQ (Single Correct Answer)

-1

A lift of mass 1000 kg which is moving with acceleration of 1 m/s² in upward direction, then the tension developed in string which is connected to lift is

9800 N

10,800 N

11,000 N

10,000 N.

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