A boat moves relative to water with a velocity which is n 2, Ask an Expert

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Q. A boat moves relative to water with a velocity which is n =2 times less than the river flow velocity. At what angle to the stream direction must the boat move to minimize drifting?

Q. A 70 g bullet traveling at 250 m/s penetrates a block of ice at 0 C and comes to rest within the ice.

Assuming that the temperature of the bullet doesn't change appreciably, how much ice is melted as a result of the collision?

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Category:- Physics
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