At a construction site a pipe wrench struck the ground with a speed of 24m/s. (a) From what height was it inadvertently dropped? (b) How long was it falling?

Answer 1

#(a)#

#29.4"m"#

#(b)#

#2.45"s"#

#(a)#
#v^2=u^2+2as#

This turns into:

#24^2=0+2xx9.8xxs#
#:.s=(576)/(2xx9.8)=29.4"m"#
#(b)#
#s=1/2"g"t^2#
#:.t=sqrt((2s)/(g)#
#:.t=sqrt((2xx29.4)/(9.8))=2.45"s"#
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Answer 2

(a) The height from which the pipe wrench was inadvertently dropped is approximately 29.4 meters. (b) The time it took for the pipe wrench to fall is approximately 2.45 seconds.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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