a girl of height 19 centimetre is walking away from the base of the lamp post at speed of 1.2 metre per second if the lamp is 3.6metre above the ground find the length of her Shadow after 4 second
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Answer:
Height of lamp post =3•6m
=360cm
Speed of the girl walking from lamp post =1•2m
Time =4s
Distance travelled in4s =speed ×time
1•2×4
4•8m
4•8×100cm
=480cm
Height of girl =90cm
360/90=4•8+x/x
4=4•8+x/x
4x=4•8+x
x=1•6
Step-by-step explanation:
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