- #1
miss_taken19
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I have a couple homework problems that are causing me some trouble...
1. The weight of 600g of salami is:
a) 0.061 N
b) 5.9 N
c) 61 N
d) 5.9 kN
I found the answer to be a) 0.061N because F=mg so m=F/g which is
0.6kg/9.8m/sec.squared. The answer is actually b) 5.9 N but I can not figure out how the got this answer. Any insights to this?
Also...
2. A 60-kg person stands on a scale in an elevator. How many Newtons does the scale read when a) it is ascending at the constant speed of 3.0 m/sec.squared? b) it is desending at the constant speed of 3.0 m/sec. squared?
I am not sure how to find this out. On one hand, I think that I need to find the acceleration at these speeds. Yet I do not think that there is any acceleration when the speed is constant. Am I sort of on the right track here?
Thanks for your help!
1. The weight of 600g of salami is:
a) 0.061 N
b) 5.9 N
c) 61 N
d) 5.9 kN
I found the answer to be a) 0.061N because F=mg so m=F/g which is
0.6kg/9.8m/sec.squared. The answer is actually b) 5.9 N but I can not figure out how the got this answer. Any insights to this?
Also...
2. A 60-kg person stands on a scale in an elevator. How many Newtons does the scale read when a) it is ascending at the constant speed of 3.0 m/sec.squared? b) it is desending at the constant speed of 3.0 m/sec. squared?
I am not sure how to find this out. On one hand, I think that I need to find the acceleration at these speeds. Yet I do not think that there is any acceleration when the speed is constant. Am I sort of on the right track here?
Thanks for your help!