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Posted by on Wednesday, October 3, 2007 at 8:43pm.

An 865 kg (1912 lb) dragster, starting from rest, attains a speed of 26.7 m/s (59.8 mph) in 0.59 s.
(a) Find the average acceleration of the dragster during this time interval.
(b) What is the magnitude of the average net force on the dragster during this time?
(c) Assume that the driver has a mass of 68 kg. What horizontal force does the seat exert on the driver?

  • Phsyics - , Wednesday, October 3, 2007 at 8:52pm

    acceleration= changevelocty/time

    Forceaverage= mass*acceleraltion

    Forceseat= driver mass*acceleration

  • Phsyics - , Wednesday, October 3, 2007 at 9:15pm

    A 69 kg diver jumps off a 10.4 m tower.
    (a) Find the diver's velocity when he hits the water.
    (b) The diver comes to a stop 2.0 m below the surface. Find the net force exerted by the water.

  • Phsyics - , Thursday, October 4, 2007 at 5:13pm

    Lee Kite just a fellow question.
    Why do you need all this help on Physics?
    You need to do your work on your own.
    Jiskha Hmework Help Corporations should ban you. Good Day.

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