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Aim of question: demonstrate that the speed of a dropped object is independent of its mass, and depends only on the height it is dropped from.
Solution: equate formulae for kinetic energy and for g...
We know momentum= mass (kg) X Velocity (m/s)
So we need to do these conversions: 1tonne=1000kg so 5 tonnes is 5x1000kg = 5000kg
There are 1000km in a meter so 50x1000= 50000m/h to get this...
N/A
Tightly packed particles vibrating about a fixed point.
t= 1.8s
a=-9.81ms-2
v=u+at
v= -9.81 x 1.8 =17.658 m/s
s= ut + 1/2 at2 (as u is 0 s= 1/2 at2)
s = 1/2 x 9.81 x 1.82GLAnswered by Gabriella L. • Physics tutor2710 Views
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