img120 - 77777 7777 q block of mass m = 0.1 kg rests on a...

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Unformatted text preview: 77777 7777 . q block of mass m = 0.1 kg rests on a horizontal, smooth , car as in the figure. The block is pressed against a mass- less spring having a spring constant k = 800 N/m. The spring is compressed a distance of x; = 4.0 cm from the equilibrium position and released. The block rises along the smooth incline, reaches the top at height h = 15 cm and is launched along the incline as a projectile. What is the maximum airborne height 1,: of the block if the incline has an angle 0 = 30°? Neglect all frictional effects. (1) 28 cm (2) 17 cm (3) 21 cm 6. A block of mass m = 0.1 kg rests on a horizontal, smooth floor as in the figure. The block is pressed against a mass- less spring having a spring constant k = 800 N/m. The spring is compressed at distance of $1 = 4.0 cm from the equilibrium position and released. The block rises along the smooth incline, reaches the top at height h. = 15 cm and is launched along the incline as a projectile. What is the maximum airborne height 3; of the block if the incline has an angle 0 = 10°? Neglect all frictional effects. (1) 17 cm (2) 28 cm (3) 21 cm 7. A block of mass m = 0.1 kg rests on a horizontal, smooth floor as in the figure. The block is pressed against a mass— less spring having a spring constant k = 800 N/m. The spring is compressed a distance of $1 = 4.0 cm from the equilibrium position and released. The block rises along the smooth incline, reaches the top at height h = 15 cm and is launched along the incline as a projectile. What is the maximum airborne height 3; of the block if the incline has an angle 0 = 20°? Neglect all frictional effects. (1) 21 cm (2) 17 cm (3) 28 cm 8. A block of mass m = 0.1 kg rests on a horizontal, smooth floor as in the figure. The block is pressed against a mass- less spring having a spring constant k = 800 N/m. The spring is compressed a distance of 2:1 = 4.0 cm from the equilibrium position and released. The block rises along the smooth incline, reaches the top at height h = 15 cm and is launched along the incline as a projectile. What is the maximum airborne height y of the block if the incline has an angle 0 = 40°? Neglect all frictional effects. (1) 36 cm (2) 17 cm (3) 21 cm (4) 28 cm (5) 44 cm 9. Starting from rest, a block of mass m = 10.0 kg slides s = 3.0 m down an incline to the bottom of a frictionless ramp inclinedfl = 300" from the floor. The block then slides an additional :2 = 5.0 m along the floor before coming to rest. What is the coefficient of kinetic friction between the block and the floor? (1) 0.30 (2) 0.20 (3) 0.15 (4) 0.10 (5) 0.25 10. Starting from rest, a block of mass m = 10.0 kg slides s = 3.0 in down an incline to the bottom of a frictionless ramp inclined 0 = 30.0° from the floor. The block then slides an additional 2 = 7.5 m along the floor before coming to rest. What is the coefficient of kinetic friction between the block and the floor? (1) 0.20 (2) 0.30 (3)015 (4) 0.10 (5) 0.25 176 ...
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