The current in a river is 1.0 meters/second. Britney swims 300 meters against the current. If she normally swims with a speed of
2 answers:
Answer:
t = 300 seconds
Explanation:
It is given that,
Speed of the current in the river,
Distance covered by Britney, d = 300 m
Speed of Britney,
It is mentioned that Britney swims against the current. Her downstream speed is given by :
v = 1 m/s
Let t is the time taken by her to complete her trip. t is given by :
t = 300 seconds
So, the time taken by her the complete her trip is 300 seconds. Hence, this is the required solution.
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Answer:
Explanation:
The stunt will likely sustain serious injury in case of concrete blocks because the average force acting on the person will be more because concrete blocks do not squeeze to provide more time for the force to act on the body instead it acts for a small amount of interval.
As impulse is constant so time requires to act force on the body is more as compared to concrete block and thus average force in mattress case is less.