Guys can someone help me to answer question number 25 shown on the screenshot below

I would also like to know what the area under the graph represents or mean

Guys can someone help me to answer question number 25 shown on the screenshot below
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August 29, 2023yvonne

Answers (4)

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  • 5 votes

    25 (a) 50/20 = 2.5 m/s2

    (b) 1/2 x (10+60) x 20 + 2T - 20x10 + 3T - 2T x 10 = 1.5 km

    the equation in (b) gives 30T = 1500 - 5000

    T = 100/3


    (c) Time taken 100/3 x 3 = 100s

    Average speed : 1500/100 = 15 m/s

    August 29, 2023
    chiedza
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  • 4 votes

    25.a 50/20 = 2.5 m/s2

    25.b 1/2 x (10+60) x 20 + 2T - 20x10 + 3T - 2T x 10 = 1.5 km

    700 + 20T - 200 + 30T - 20T = 1500

    500 + 30T = 1500

    30T = 1500 - 1500

    T = 100/3 = 33.33333333

    August 29, 2023
    lex
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  • 4 votes

    a) 2.5 m/s

    b) 33.333333333333

    c) 15 m/s

    August 29, 2023
    netsai
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