A person weighs 50 kg wt in air. He displaces 40 kg water when he swims keeping his body in the water. The weight he loses is

40

Questions Match

1.
A person weighs 50 kg wt in air. He displaces 40 kg water when he swims keeping his body in the water. The weight he loses is

1. 50 kg wt2. 40 kg wt3. 5 kg wt4. 4 kg wt

2.
A person travels along a straight line for first half length with v₁ and second half length v₂, the mean velocity is

1. 2. 3. 4.

3.
A person can swim in still water at 5 m/s. How much time will he take to move a distance of 120 m in stream of water flowing at 1 m/s up stream and drown-stream respectively?

1. 24 s, 24 s2. 20 s, 30 s3. 30 s, 20 s4. None of these

4.
A person covers a certain distance downstream in 15 s and upstream in 30 s. How much time will he take to cover same distance in still water?

1. 22.5 s2. 3. 20 s4. None of these

5.
A person moving in north direction with speed of 5 km/h and another person moving in east direction with speed 7 km/h then the relative velocity of first person with respect to another person (east direction is taken as x-axis)

1. 2. 3. 4.

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A person weighs 50 kg wt in air. He displaces 40 kg water when he swims keeping his body in the water. The weight he loses is