Question

A relief food package is dropped from an aeroplane which is moving horizontal with a velocity of 30 m/d at a flight of 50 m . Find (1) time of flight of package (2) location of the point of stricking of food package (3) displacement of food package (4) velocity with food package strikes the ground.
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Answer 1

Answer:

uu

x

=30ms

−1

,u

y

=0ms

−1

,andh=50m.

h=u

y

t+

2

1

gt

2

⇒

10

50×2

=t

2

⇒t=

1

0s

Distance (horizontally) covered in t=

1

0s

x=u

x

t=30

1

0m

v

x

=u

x

=30ms

−1

v

y

=u

x

+gt=10

1

0ms

−1

v=

9000+1000

=10

1

9ms

−1

Displacement =

h

2

+x

2

=

2500+9000

=10

1

15m

Answer 2

Answer:

A relief food package is dropped from a airplane which is moving horizontal with a velocity of 30 m s−1 at a height h = 50 m.