OMG Brain Pain (1 Viewer)

[SgtSlick]

Hey, yes SgtSlick needs help, imagine that....

An astronaut is standing on mars. the astronaut throws an object of mass 0.3 Kg vertically upward at an initial speed of 9 ms. It reaches a max height of 11 m. What is the magnitude of acceleration on the object?

My god i cant believe i cant work this out, english has fried my brain

 

[SgtSlick]

will some1 please answer the fucking q?

 

[kaseita]

v^2=u^2 +2as
resolve for a
i.e. 0=81 + 2(11)a
a=-3.68ms

negative, since its downwards

 

[spice girl]

Originally posted by SgtSlick
will some1 please answer the fucking q?

watch ur attitude...

btw kaseita, magnitudes are always positive

 

[kaseita]

oh yea, woop. didn't read that part
thanks spice

 

[SgtSlick]

Shit i knew i was making a dumb mistake..thank u both for ure help and im sorry if i appeared terse...

SgtSlick