A 0.10g spider is descending on a strand that supports it with a force of 6.6x10^-04 N.?
What is the acceleration of the spider? Ignore air resistance.
Can u please show me how to solve for it.
The answer is suppose to be 3.2m/s2 downwards.
- polloloco.rb67Lv 41 decade agoFavorite Answer
Here we will use the force equation.
F = ma whre m is mass, and a is accelleration.
Draw a diagram of the spider.
The strand will have an upward force of T = 6.6x10^-04 N
Don't forget gravity. Now we need to find the downward force. This is the weight of the spider.
W = mg where w = weight, m = mass of spider, g = acceleration of gravity.
W = .10 * 9.81 = .0981 N
Thus we have two quantities.
T = 6.6x10^-04 N the upward force caused by the strand
W = .0981 the downward force caused by gravity and mass of spider
Recall our initial equation.
F = ma.
We simply need to find F since m is .10 g
F = T - W This is the upward force minus the downward force. Make sense?
F = T - W = ma
F = .00066 - .0981 = .1 * a
now we solve for a
F = -.09744 = .1 * a
-0.9744 m/s^2 is your acceleration, that is .9744 m/s^2 downwards.Source(s): message me if you have any questions.
- 1 decade ago
F=mass x acceleration