A 60° inclined plane of length 0.30 m is positioned at the edge of a table that is 1.0 m high, as shown in (Figure 1). A

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A 60 Inclined Plane Of Length 0 30 M Is Positioned At The Edge Of A Table That Is 1 0 M High As Shown In Figure 1 A 1 (93.44 KiB) Viewed 38 times

A 60° inclined plane of length 0.30 m is positioned at the edge of a table that is 1.0 m high, as shown in (Figure 1). A box is placed at the top of the plane and given a shove so that it has an initial velocity of 2.0 m/s down the plane. The coefficient of kinetic friction between the block and the plane is μ = 0.80. (a) Calculate the speed of the block when it reaches the bottom of the plane. (b) Find the speed of the block when it is 0.70 m above the floor. (c) Is the total mechanical energy of the block conserved as it moves from the top of the plane to the floor? Figure 1.0 m 60% 0.30 m 1 of 1 Part L Now we can check that the total energy is indeed conserved. Find the ratio of the total energy E₁ of the box at the initial moment to the mass m of the box. Use the floor as the level of zero gravitational potential energy. Express your answer in joules per kilogram to three significant figures. ► View Available Hint(s) E₁ m Submit REFLECT ||| ΑΣΦ Part M Complete previous part(s) Part N Complete previous part(s) Part O Complete previous part(s) Part P Complete previous part(s) < Return to Assignment Provide Feedback ? J/kg