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4 Cards in this Set
- Front
- Back
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A ferret is hit by a speeding vole with a force of 70N for 0.5s. Calculate the ferret's change in momentum. |
Force X Time = Change in momentum 70 X 0.5 = 35m/s^2 |
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Calculate the increase in gravitational potential energy when a box of mass 12kg is raised by 4.5m (g = 10N/Kg) |
GPE = Weight X Height Weight = Mass X Gravitational field strength GPE = 120N X 4.5m GPE = 540J |
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Find the kinetic energy of a 78Kg sheep moving at 23m/s |
KE = 1/2 mv^2 KE = 1/2 78 X 23^2 KE = 20631J |
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At the top of a roller coaster ride a carriage has 150 kJ of G.P.E Ignoring friction, how much K.E. will the carriage have at the bottom ( where G.P.E. = 0) |
N/A |
