The power of the kettle was 2.6kw. The kettle took 120 seconds to heat 0.80kg of water from 18°C to 100°C
Calculate the specific heat capacity of water using this information.

Give your answer to 2 significant figures

The objects do not reach terminal velocity         there is not enough time from the time the object falls from when it hits the ground to achieve terminal velocity. an object must be placed higher to achieve terminal velocity in order to be in free fall.

Projectile motion is a form of motion experienced by an object or projectile that is thrown near the earth's surface and moves along a curve path under the action of gravity.   

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The displacement is the change in position. final position minus the initial position.the initial position at the origin is 0 m. the final position is -12 m. therefore the displacement of the object is -12 m.