waltssillyhat
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this is from the kinematics chapter review in the yr 11 pearson textbook
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can someone explain why the answer is B? (1 Viewer)
- Thread starter waltssillyhat
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this is from the kinematics chapter review in the yr 11 pearson textbook
cheesynooby
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all grav potential energy is converted to kinetic energy (conserv. of energy)
so U = mgh = (1/2)mv^2 = K
v = sqrt(2gh)
so when h is doubled (x2) v increases by sqrt(2)
so U = mgh = (1/2)mv^2 = K
v = sqrt(2gh)
so when h is doubled (x2) v increases by sqrt(2)