(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Ok, I am a straight A student in math so you think Physics would be easy right? Not exactly. I really need someone to explain this stuff to me. Its probably really easy if it was explained to me correctly but my teacher is not the best when it comes to breaking things down. so here are SOME of the questions that I am having problems with.

- A zoologist standing on a cliff aims a tranquilizer gun at a monkey hanging from a distant tree branch. The barrel of the gun is horizontal. Just as the zoologist pulls the trigger the monkey lets go and begins to fall. Ignoring air resistance, will the dart hit the monkey? Explain.

- A long jumper leaves the ground with a speed of 6.8 m/s at an angle of 34 degrees. How far did she jump?

- Mr. B swings a 3.0 kg mass at the end of a 2.3m string in a horizontal circle to demonstrate centripetal acceleration to a class. If the string can withstand a tension of 80N, at what speed can he swing the mass before risking a lawsuit?

- A car is rounding a curve with a radius of 12 m at 8.2 m/s when it hits a slippery patch. What is the minimum coefficient of static friction between the car and the slick patch of road that will allow the car to round the corner safely?

2. Relevant equations

mabe these?

a=v squared/r

a=4 pie squared r/T squared

F=4 pie squared rm/T squared

3. The attempt at a solution

I dont really know where to start? Or what equations to use, or if these are even the right equations?

ANY help would be appreciated!!

Thank you!

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Please help! circular motion/ centripetal acceleration and more!

**Physics Forums | Science Articles, Homework Help, Discussion**