Choose the TChooso the correct answer of the followin : 19-10w) 1) Amass of 1 x

Question

Choose the TChooso the correct answer of the followin : 19-10w) 1) Amass of 1 x 10", 1x10"wg is equal to (1kg-103 g a) 1 x 10 1 kg b) 1x 10 kg c) 1 x 10kg d) 1 x 10 kg 2) " Ax -3.1, A 14.0, thon the magnitude and direction of A is respectively y a) 5.55 and 56 b) 5.55 and +124 c) 30.77 and 56 d) 30.77 and -56 3) A stone is thrown vertically upwards, reaches a highes When the stone is at the top of its path, its acceleration t point, and returns to the ground a) is zero. b) is directed upwards. c) is directed downwards d) changes direction from upwards to downwards. 10 t lol) A velocity-time graph of an object in motion is given above. The acceleration of the object between times t, = 2 seconds to t2-10 seconds ? a) 1m/s b) 0 m/s c) 0.8m/s2 d) 4m/s2

Explanation / Answer

1) c

2)

Mag =(4.6^2 + 3.1^2) = 5.5

angle= tan^-1( -4.6/3.1)=56°

Option : a

3) d

4)b

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