Len is running to school and leapirig over puddles as he goes. From the edge of a 1.5-m-long puddle, Len jumps 0.20 m high off the ground with a horizontal velocity component of 3.0 m/s in an attempt to clear it. Determine whether or not Len sits in school all day with wet socks on.
I get a very weird answer of 0.5m. If this isnt right show me how to do this problem
I get a very weird answer of 0.5m. If this isnt right show me how to do this problem
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I would start by finding out how long it takes to FALL 0.20 m
s = 1/2 g t^2
t=sqrt(2s/g) =sqrt(0.40/9.8) =0.20 s
It takes just as long to go up the distance as to go down the distance.
so total time of flight = 0.40 s
And as he is at a speed of 3.0 m/s he will cover a distance of 3* 0.4 = 1.2 m
When he hits the puddle, still 0.3 m from the edge, his feet hit some slippery clay and he falls backwards into the puddle.
Not only are his socks wet but so also are his trousers so he gets to school cold, wet and miserable.
Lesson is, always study physics before attempting to apply it.
s = 1/2 g t^2
t=sqrt(2s/g) =sqrt(0.40/9.8) =0.20 s
It takes just as long to go up the distance as to go down the distance.
so total time of flight = 0.40 s
And as he is at a speed of 3.0 m/s he will cover a distance of 3* 0.4 = 1.2 m
When he hits the puddle, still 0.3 m from the edge, his feet hit some slippery clay and he falls backwards into the puddle.
Not only are his socks wet but so also are his trousers so he gets to school cold, wet and miserable.
Lesson is, always study physics before attempting to apply it.