Scientists have been studying a type of spider that can jump up to six times its body length.
The scientists photographed a spider at 0.02s intervals, during a jump. The picture is taken from the photograph and is shown at its actual size.
(4)
(5)
Calculate the average force the spider exerts in each leg to achieve the jump.
mass of spider = 150 mg
(3)
Average force = ......................................................
Just as the spider starts the jump, it fixes a silk thread to the platform. It is thought that the thread acts as a safety line in case the spider falls.
A student makes the comment:
ʻIf the silk thread can withstand a tension equal to the weight of the spider then this safety system should work.ʼ
Deduce whether this statement is correct.
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