An object with mass m 10kg is pulled by a string with a force F with magnitude 20N at 300 above horizontal, and starts moving from rest. The kinetic friction coefficient between the surfaces is u = 0.1. (a) Find the normal force and friction exerted on the object. Normal force: N = IN Friction f =

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**Question 18**

An object with mass \( m = 10 \, \text{kg} \) is pulled by a string with a force \( F \) with magnitude \( 20 \, \text{N} \) at \( 30^\circ \) above horizontal, and starts moving from rest. The kinetic friction coefficient between the surfaces is \( \mu_k = 0.1 \).

![Diagram](#)

- The diagram depicts a block on a horizontal surface. A force \( F \) is applied on the block at an angle \( \theta = 30^\circ \) above the horizontal axis.

**(a) Find the normal force and friction exerted on the object.**

- Normal force: \( N = \_\_\_\_ \, \text{N} \)
- Friction: \( f = \_\_\_\_ \, \text{N} \)

**(b) Find the acceleration.**

- \( a = \_\_\_\_ \, \text{m/s}^2 \)

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Transcribed Image Text:**Question 18** An object with mass \( m = 10 \, \text{kg} \) is pulled by a string with a force \( F \) with magnitude \( 20 \, \text{N} \) at \( 30^\circ \) above horizontal, and starts moving from rest. The kinetic friction coefficient between the surfaces is \( \mu_k = 0.1 \). ![Diagram](#) - The diagram depicts a block on a horizontal surface. A force \( F \) is applied on the block at an angle \( \theta = 30^\circ \) above the horizontal axis. **(a) Find the normal force and friction exerted on the object.** - Normal force: \( N = \_\_\_\_ \, \text{N} \) - Friction: \( f = \_\_\_\_ \, \text{N} \) **(b) Find the acceleration.** - \( a = \_\_\_\_ \, \text{m/s}^2 \) *Click Save and Submit to save and submit. Click Save All Answers to save all answers.*
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