9 A box at rest is accelerated by a rope attached with a motor as shown in the Fig 2.1. The velocity-time graph given below shows the pattern of its motion for 20 s. {a) If the box is pulled with constant unbalanced force 10N. Show that the initial acceleration of the box is 2,5 ms, and calculate its mass.
(b) After 2.0 second the box is being pulled by a constant force 12 N. Determine the size of frictional forces acting on the box at this time.
(c) Determine the distance of the box travels along the ground at 8.0s.
{a) If the box is pulled with constant unbalanced force 10N. Show that the initial acceleration of the box is 2,5 ms, and calculate its mass.
(b) After 2.0 second the box is being pulled by a constant force 12 N. Determine the size of frictional forces acting on the box at this time.
(c) Determine the distance of the box travels along the ground at 8.0s.
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9 A box at rest is accelerated by a rope attached with a motor as shown in the Fig 2.1. The velocity...
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