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Second Law of Motion

83.two person...

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83.two persons A and B of weight 80 kg and 50 kg respectively are standing at opposite ends of a Boat of mass 70 kg and length 2 m at rest. when they interchange their position then displacement of the centre of mass of both will be ?

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(A

B)

50 kg

100 kg

are standing at the two opposite ends of a boat of mass

200 kg

L = 20 m

A

travels a distance

5 m

right relative to the boat towards the centre and

B

moves a distance

15 m

left relative to the boat and meets

A

. Find the distance travelled by the boat in the water when they meet.

Q. A boat of mass

M = 100 kg

L = 20 m

is on a frictionless water surface. Two men

A

m_{1} = 25 kg

B

m_{2} = 50 kg

are standing at the two opposite ends. Now, both start travelling in opposite directions to each other and they reach the opposite positions of each other. Find the distance travelled by the

A

w.r.t the ground.

Q. Two persons A and B having masses

55 kg

65 kg

respectively, are sitting at the opposite ends of a stationary boat. The length of the boat is

3 m

and the weight is

100 kg

. Person A walks upto person B & sits with him. If the boat is in still water, the centre of mass of the system shifts by

Q. Two men, of masses

60

80

kg are sitting at the ends of a boat of mass

60

4

m. The boat is stationary. If the men now exchange their positions, then?

Q. Suresh and Shyam of masses

60 kg

70 kg

respectively are standing at the two extremes of a long boat of mass

50 kg

6 m

standing still in water. After some time, they come to the middle of the boat. Neglecting water resistance, how far does the boat move on the water during the process?

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