Friday

October 24, 2014

October 24, 2014

Posted by **Celina** on Wednesday, November 5, 2008 at 4:41pm.

#1: A space craft travels at a speed of 8/10 of a mile per second. How many days does it take it to travel from the Earth to the Moon, a distance of 240,000 miles?

At first, my answer I got was 208 1/3 days, but to me that sounds way to long for a spacecraft, considering how fast it is going. The other possible answers I got are that maybe I need to move the decimal point, so maybe 20.8 days or 2.08 days. Please tell me if any of these answers are right.

#2: How much force, in g•cm/s² (that's to the second power, if you can't read that symbol) is exerted by a golf ball striking a tree while accelerating at 20 cm/s²? Show how you can solve this problem without knowing that F = ma.

Of course, I don't even know what in the world F = ma is. Okay, my sister told me it means Force equals mass times acceleration, but I wouldn't even know how to apply it to this problem.

Try to solve this problem. It did say in the problem a golf ball like the one in problem #9 on my worksheet, so if you need more info to solve this problem, I can give you problem #9, too.

I appreciate any help you can give me. Thank you!

- Algebra -
**bobpursley**, Wednesday, November 5, 2008 at 5:11pm#1: A space craft travels at a speed of 8/10 of a mile per second. How many days does it take it to travel from the Earth to the Moon, a distance of 240,000 miles?

so how many seconds are in a day?

60sec/min*60min/hr*24hrs/day=86400sec/day

So how fast is it going?

8/10 mi/sec*86400sec/day=? mi/day

So how long does it take?

timeindays=distanceinmiles/speedinMi/day

- Algebra -
**Celina**, Wednesday, November 5, 2008 at 6:59pmThanks! Could you explain how you got your answer a little more and give me the numbers, too? Do you have any idea for the answer to number 2? Thanks so much!

- Algebra -

**Answer this Question**

**Related Questions**

Algebra - Here are two more problems I have for homework tonight. I have gotten ...

Algebra 2 - could you walk me thorugh these problems simplfy square root 18 - 3 ...

algebra - I have a few math questions I made them just like my actual problems ...

Algebra - I have just one math problem that I need a little help with. Please ...

math - Hi I need help with 5 questions..some of it is confusing to me. I just ...

Algebra - Please help!!! I have a worksheet of problems to do for homework, most...

Algebra--please help! - I'm having some trouble with my algebra homework. Please...

Algebra - Could someone correct my answers and help with the other problems? 1. ...

Algebra--please help! - I really need help with my math homework today, because ...

Easy (yet confusing) Algebra - These problems are pretty easy, but confusing (as...