Question #6703e

1 Answer
MeneerNask · Paul N.
Jan 23, 2015

The formula is #F=m*a#
Where #F#=force, #m#=mass and #a#=accerelation.

Fill in what we know:

#F=m*a#
#1600N=m*40m/s^2#
#m=(1600N)/(40m/s^2) = 40 kg#

And there we have a problem, because crate+bricks have a mass of only 40 kg while the crate is 150 kg.

I think you missed, or added, a #0# somewhere.

(1)
Let's make the crate lighter : 15 kg
Then the bricks weigh #40-15=25kg#

(2)
Or cut down on the accelaration lets make it #4m//s^2#
(#40m//s^2# is very high, it's 4 times gravity , or #4*g#)
#F=m*a#
#1600=m*4#
#m=400 kg#
Which would leave #400-150=250kg# for the bricks

(3)
Or make the force greater: 16000N
#F=m*a#
#16000=m*40#
#m=400 kg#
Which would also leave #400-150=250kg# for the bricks

My bet would be on possibility (2)

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