Homework Help: physics

Posted by Supriya on Friday, February 1, 2013 at 12:55pm.

An airplane is flying with a velocity of 95.0 at an angle of 26.0 above the horizontal. When the plane is a distance 113 directly above a dog that is standing on level ground, a suitcase drops out of the luggage compartment.

How far from the dog will the suitcase land? You can ignore air resistance.?

physics - Steve, Friday, February 1, 2013 at 3:40pm
assuming the unit of distance here is meters,

the horizontal speed is 95 cos26° = 85.4m/s

to get time to fall:
113 = 4.9t^2
t = 4.8 seconds

horizontal distance moved is thus

85.4 * 4.8 = 410.1 m

assuming the dog doesn't start chasing the plane! :-)

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