An astronaut floating freely in space decides to use his flash light as a rocket. He shines a 10 watt light beam in a fixed direction so that he acquires momentum in the opposite direction. If his mass is 80 kg , how long must he need to reach a velocity of1ms^(-1)

An astronaut floating freely in space decides to use his flash light a

1.	An astronaut floating freely in space decides to use his flash light as a rocket. He shines a 10 watt light beam in a fixed direction so that he acquires momentum in the opposite direction. If his mass is 80 kg , how long must he need to reach a velocity of1ms^(-1)
Answer» `9 SEC` `2.4 XX 10^(3)sec` `2.4 xx 10^(6) sec` `2.4 xx 10^(9) sec` ANSWER :D

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An astronaut floating freely in space decides to use his flash light as a rocket. He shines a 10 watt light beam in a fixed direction so that he acquires momentum in the opposite direction. If his mass is 80 kg , how long must he need to reach a velocity of1ms^(-1)

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