a person pushes a 16.0 kg shopping cart atr a cionstantvelocity at a distance of

Question

a person pushes a 16.0 kg shopping cart atr a cionstantvelocity at a distance of 22.0 m she pushes in a duirection29.0o below the horizontal a 48.0 N fricrional forceopposes the motion of the cart (a) what is the magnitude of theforce the shopper exerts determine the work done by the (b) pushingforce (c) frictional force (d) the gravitational force a person pushes a 16.0 kg shopping cart atr a cionstantvelocity at a distance of 22.0 m she pushes in a duirection29.0o below the horizontal a 48.0 N fricrional forceopposes the motion of the cart (a) what is the magnitude of theforce the shopper exerts determine the work done by the (b) pushingforce (c) frictional force (d) the gravitational force

Explanation / Answer

(a)    as the x-component force is zero we getthat     Fx = 0      F cos - f = 0    F = f / cos       = ....... N (b)    work done will be    W = F cos s         = ....... J (c)    work done will be    W = f cos s         = ....... J (d)    work done will be    W = m g cos s         = ....... J    W = f cos s         = ....... J (d)    work done will be    W = m g cos s         = ....... J    W = m g cos s         = ....... J

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