Homework Help: physics

Posted by Thabang on Sunday, January 22, 2012 at 4:23pm.

During a Science day learners use a plastic cold drink bottle as a rocket.They use a bicycle pump to increas the presure inside the bottle.When the presure becomes high enough,the bottle is launched vertically upwards into the air.The bottle returns to its original position after 3 second.

1.What is the magnitude of the velocity of the bottle when it reaches its maximum height?

2.What is the magnitude and the direction of the acceleration of the bottle during its flight?

physics - Anonymous, Saturday, January 28, 2012 at 2:13am
1. 0 m.s-1

2. 9.8 m.s-2 downwards

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