30 March, 04:39
A clam of mass 0.12 kg dropped by a seagull takes 3.0 s to hit the ground. [Neglect friction.]
What is the velocity of the clam when it strikes the ground? [Show all work, including the equation and substitution with units.]
30 March, 05:47
- - The acceleration of gravity is 9.8 m/s².
So if there's no air resistance, the speed of a falling object
always increases by 9.8 m/s for every second it falls.
Speed = (original speed) + (gravity x falling time)
- - If it has no vertical speed when it started, then at the end
of 3 seconds, its speed is
= (0) + (9.8 m/s² x 3 sec)
Velocity = 29.4 m/s downward.
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» A clam of mass 0.12 kg dropped by a seagull takes 3.0 s to hit the ground. [Neglect friction.] What is the velocity of the clam when it strikes the ground? [Show all work, including the equation and substitution with units.]