Determine the force P needed to pull the 70-kg roller over the smooth step. Take 0 = 40 °. (Figure 1) Figure 1 of 1 Express your answer to three significant figures and include the appropriate units. Value 50 mm 300 mm Units P Pearson

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Newton's First Law of Motion

If a very smooth ball is rolled down an inclined surface with zero friction, the ball will continue to roll indefinitely for an infinite time, in an attempt to reach to the same height on the opposite hill!