Question

A child places a wooden block on a longer horizontal plank of wood. She slowly tilts the plank until the instant the block begins to slide. As soon as the block begins to slide, she holds the plank in place. What is the magnitude of the acceleration of the block down the plank? ($$\mu_s = 0.5$$ and $$\mu_k = 0.2$$) $$0 m/s^2$$ $$2.6 m/s^2$$ $$3.2 m/s^2$$ $$7.9 m/s^2$$ $$9.8 m/s^2$$

Name: a child places a wooden block on a longer horizontal plank of wood she slowly tilts the plank until the instant the block begins to slide as soon as the block begins to slide she holds the p 71269
Uploaded: 2021-10-22T17:11:42-08:00
Duration: 3 min 36 s
Channel: Pritesh Ranjan
Description: a child places a wooden block on a longer horizontal plank of wood she slowly tilts the plank until the instant the block begins to slide as soon as the block begins to slide she holds the p 71269

          A child places a wooden block on a longer horizontal plank of wood. She slowly tilts the plank until the instant the block begins to slide. As soon as the block begins to slide, she holds the plank in place. What is the magnitude of the acceleration of the block down the plank? ($$\mu_s = 0.5$$ and $$\mu_k = 0.2$$)
$$0 m/s^2$$
$$2.6 m/s^2$$
$$3.2 m/s^2$$
$$7.9 m/s^2$$
$$9.8 m/s^2$$

a child places a wooden block on a longer horizontal plank of wood she slowly tilts the plank until the instant the block begins to slide as soon as the block begins to slide she holds the p 71269

Added by Tammy S.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Pritesh Ranjan

10/22/2021

Step 1

1. Gravitational force ($$mg$$) acting vertically downwards. 2. Normal force ($$N$$) acting perpendicular to the plank, upwards. 3. Frictional force ($$f$$) acting parallel to the plank, opposing the motion. When the plank is tilted, the gravitational force can Show more…

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A child places a wooden block on a longer horizontal plank of wood. She slowly tilts the plank until the instant the block begins to slide. As soon as the block begins to slide, she holds the plank in place. What is the magnitude of the acceleration of the block down the plank? ($$\mu_s = 0.5$$ and $$\mu_k = 0.2$$) $$0 m/s^2$$ $$2.6 m/s^2$$ $$3.2 m/s^2$$ $$7.9 m/s^2$$ $$9.8 m/s^2$$