Question

The figure below shows a 1.75-kg block at rest on a ramp of height h = 0.5 m. When the block is released, it slides without friction to the bottom of the ramp, and then continues across a surface that is frictionless except for a rough patch of width 10.0 cm that has a coefficient of kinetic friction ?k = 0.670. Rough patch 10.0 cm What is the block's speed after moving over the rough patch? 1.6 m/s -4.5 m/s 7.2 m/s 2.9 m/s 3.3 m/s

          The figure below shows a 1.75-kg block at rest on a ramp of height h = 0.5 m. When the block is released, it slides without friction to the bottom of the ramp, and then continues across a surface that is frictionless except for a rough patch of width 10.0 cm that has a coefficient of kinetic friction ?k = 0.670.

Rough patch
10.0 cm

What is the block's speed after moving over the rough patch?

1.6 m/s
-4.5 m/s
7.2 m/s
2.9 m/s
3.3 m/s

The figure below shows a 1.75-kg block at rest on a ramp of height h = 0.5 m. When the block is released, it slides without friction to the bottom of the ramp, and then continues across a surface that is frictionless except for a rough patch of width 10.0 cm that has a coefficient of kinetic friction ?k = 0.670.

Rough patch
10.0 cm

What is the block's speed after moving over the rough patch?

1.6 m/s
-4.5 m/s
7.2 m/s
2.9 m/s
3.3 m/s

Added by Scott B.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Shaiju T

06/02/2022

Step 1

- The potential energy (PE) is given by the formula PE = mgh, where m is the mass, g is the acceleration due to gravity (approximately 9.8 m/s²), and h is the height. - For the block, PE = (1.75 kg) × (9.8 m/s²) × (0.5 m) = 8.575 joules. Show more…

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The figure below shows a 1.75-kg block at rest on a ramp of height h = 0.5 m. When the block is released, it slides without friction to the bottom of the ramp, and then continues across a surface that is frictionless except for a rough patch of width 10.0 cm that has a coefficient of kinetic friction, uk = 0.670. What is the block's speed after moving over the rough patch? 1.6 m/s -4.5 m/s 7.2 m/s 2.9 m/s 3.3 m/s