1.

A toy car of mass 5 kg moves up a ramp under the influence of force F plotted against displacement x. The maximum height attained is given by

A.                         \[{{y}_{\max }}=20m\]          
B.                           \[{{y}_{\max }}=15m\]          
C.                         \[{{y}_{\max }}=11m\]            
D.                         \[{{y}_{\max }}=5m\]
Answer» D.                         \[{{y}_{\max }}=5m\]


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