6 A 70kg fisherman is fishing in a 40kg dinghy at rest on a still lake when, suddenly, he is attacked by a swarm of wasps. To escape, he leaps into the water and exerts a horizontal force of 140N north on the boat. a What force does the boat exert on the fisherman? b With what acceleration will the boat move initially? c lf the force on the fisherman lasted for 0.50 s, determine the initial speed attained by both the man and the boat.

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Chapter1: Units, Trigonometry. And Vectors
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Please help me to answer answer only number 6. 

 

6 A 70kg fisherman is fishing in a 40kg dinghy at rest
on a still lake when, suddenly, he is attacked by a
swarm of wasps. To escape, he leaps into the water
and exerts a horizontal force of 140N north on the
boat.
a What force does the boat exert on the fisherman?
b With what acceleration will the boat move initially?
c If the force on the fisherman lasted for 0.50 s,
determine the initial speed attained by both the
man and the boat.
7 An astronaut becomes untethered during a space-walk
and drifts away from the spacecraft. To get back to the
ship, she decides to throw her tool kit away. In which
direction should she throw the tool kit?
Transcribed Image Text:6 A 70kg fisherman is fishing in a 40kg dinghy at rest on a still lake when, suddenly, he is attacked by a swarm of wasps. To escape, he leaps into the water and exerts a horizontal force of 140N north on the boat. a What force does the boat exert on the fisherman? b With what acceleration will the boat move initially? c If the force on the fisherman lasted for 0.50 s, determine the initial speed attained by both the man and the boat. 7 An astronaut becomes untethered during a space-walk and drifts away from the spacecraft. To get back to the ship, she decides to throw her tool kit away. In which direction should she throw the tool kit?
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