Recent content by indebluez

thanx alot!

jus one more qn on potenital n kinetic energy guys... for instance a ball is at the top of hill A and now is let go...and after hill A there's one more hill/...hill B...and hill B is taller than hill A... will the ball be able to climb hill B? i noe its got to do with PE and KE...but...

hi doc al:) okye i finally get it:) there's a net force actiing on the ball...this net force on the ball is the force that provides the acceleration upwards... the net force on the ball, is the force of the table on the ball...right? theres an equal n opp force on the table exerted by the...

but bobg said that the upward force is the acc and mass of the ball...but doc al says the force on the ball is the force exerted by the table on the ball...so shouldn't it be mass n acc of the table?

hi bob, one last tihng...so the force exerted by the ball on the table is upwards? and the force exerted by the table on the ball is downwards? i thought it was the oter way round...sorry i noe i sound really confused...but help! coz the resultant acc is from the forces exerted by each...

hi bob! thank u so much...i get it now! for a ball bouncing on a table, when the ball hits the table...what happens is that teh ball exerts an equal and opposite force on the table, that the table exerts on it... but the acceleration tts experinced by the table and the ball is...

hi:) thanx for the reply:) it has cleared more stuff in my head... so when the ball hits the table, there's an equal and opposite reaction from the table on the ball...asl well... so then why is there an upward acceleration then? i jus can't see why there's an upward acc...if the forces...

oh i think i got it guys:) when the ball is falling, acc is cont...and when the ball bounces off the floor...the acc is still const...but since takin downward motion as positive...the acc is positive... but at the instant at which the ball hits the ground...the acceleration falls... but...

hi everybdy... i noe how the vel against time graph looks like when a ball is dropped... but i have no idea how the acceleration against time graph looks like... i noe at the moment the ball hits the ground...the acceleration value is still constant...but what about when its fallin and...