Math Is Fun Forum

Jaswahhihi

Member

Registered: 2005-07-23

Posts: 11

Mechanics 2!!

darn I hate this question! Theres no diagram but Ill copy the question out. Oh and the topics Parbolic motion.

A particle is projected at a speed of 45ms at an angle of 30 degrees above the horizontal.

(a) Calculate
(i) the speed and direction of the motion of the particle after 4 seconds,
(ii) the maximum height above the point of projection reached by the particle.

I can do (b) but the first two are the ones that got me. Anyhoo the answers are:

(a)
(i) 42.4 ms at 23.2 degrees below the horizontal
(ii) 25.8 m

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Jaswahhihi

Member

Registered: 2005-07-23

Posts: 11

Re: Mechanics 2!!

Sorry mate, while I was waiting for a reply I worked it out. And its just 9.8. Thanks though

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98% of the teenage population does or has tried smoking pot. If you're one of the 2% who hasn't, copy & paste this into your signature.