Answer:
Explanation:
As the ball rises up, the gravitational force and the resistance force of air acts downwards and the displacement is upwards so the angle between the force and the displacement is 180°, thus, the work done by the gravitational force and the resistance force of air is negative. So, option (d) is correct.
The work done by gravity and work done by air resistance are ; ( D ) Negative, Negative
The work done by both gravity and air resistance are both negative and this is because as the ball is hit ( upwards ) it moves against the forces of gravity and air resistance which act ( downwards ) on any object thrown upwards or moves in the positive y-axis.
Therefore we can conclude that the work done by the force of gravity and air resistance is in opposite direction to the movement of the baseball ( i.e. negative work done )
Hence we can conclude that The work done by gravity and work done by air resistance are ; Negative, Negative .
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