Posted by SABRINA on Monday, August 27, 2012 at 8:09am.
A child of height 1.2 metres stands 3 metres from the foot of a lamp post of height 2.8 metres, at the top of which there is a small source which can be considered as a point. What is the length of the shadow cast by the child upon the ground?

physicsplease help  Damon, Monday, August 27, 2012 at 8:11am
Now Sabrina,
We did the previous problem for you. It is very similar to this problem. Please try it. It is really just trig.

physicsplease help  SABRINA, Monday, August 27, 2012 at 8:35am
is it
D/5.8= 1.2/2.8
D= (5.8x1.2)/2.8
D= 2.48m
??

physicsplease help  SABRINA, Monday, August 27, 2012 at 8:58am
can someone help? i am really struggling

physicsplease help  SABRINA, Monday, August 27, 2012 at 9:18am
could i have a clue or a starting point please?

physicsplease help  Elena, Monday, August 27, 2012 at 5:40pm
2.8/(3+x) = 1.2/x,
2.8• x =1.2•3+1.2•x,
x=3.6/1.6=2.25 m
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