1. (C) 12.5 N a = slope of graph = 10 – 0/4 – 0 = 2.5 m/s² F = ma = 5 x 2.5 = 12.5 N Hence, option [C] is correct.

    (C) 12.5 N
    a = slope of graph
    = 10 – 0/4 – 0
    = 2.5 m/s²
    F = ma = 5 x 2.5 = 12.5 N
    Hence, option [C] is correct.

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