A spring powered gun has Hooke's constant k. The spring is compressed by length 6 and shoots a pellet (mass = m) horizontally from height h above ground level. Calculate (A) the initial speed of the pellet. When the pellet hits the ground, what are (B) the speed and (C) the horizontal distance? [Data: k = 75 N/m; 8 = 3.4 cm; m = 15 grams; h = 1.22 m ] 2.404X10^-3 m/s LO .4989 s 1.199X10 -3 m Incorrect. --- ▬▬▬▬▬▬ Incompatible units. No conversion found between "s" and the required units. Unable to interpret units. Computer reads units as "-3*m". ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ -|▬▬OMOGO TICO

College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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**Problem Description:**

A spring-powered gun has Hooke’s constant \( k \). The spring is compressed by length \( \delta \) and shoots a pellet (mass = \( m \)) horizontally from height \( h \) above ground level. Calculate (A) the initial speed of the pellet. When the pellet hits the ground, what are (B) the speed and (C) the horizontal distance?

**Given Data:**
- \( k = 75 \, \text{N/m} \)
- \( \delta = 3.4 \, \text{cm} \)
- \( m = 15 \, \text{grams} \)
- \( h = 1.22 \, \text{m} \)

**Student Submissions and Feedback:**
1. **Attempt 1:** \( 2.404 \times 10^{-3} \, \text{m/s} \)  
   - **Feedback:** Incorrect.

2. **Attempt 2:** \( 4989 \, \text{s} \)  
   - **Feedback:** Incompatible units. No conversion found between "s" and the required units.

3. **Attempt 3:** \( 1.199 \times 10^{-3} \, \text{m} \)  
   - **Feedback:** Unable to interpret units. Computer reads units as "^-3m".

**Note:** It appears the student is struggling with unit conversion and interpreting results. Ensure to convert all measurements to compatible units (e.g., mass in kilograms, distance in meters) before calculations.
Transcribed Image Text:**Problem Description:** A spring-powered gun has Hooke’s constant \( k \). The spring is compressed by length \( \delta \) and shoots a pellet (mass = \( m \)) horizontally from height \( h \) above ground level. Calculate (A) the initial speed of the pellet. When the pellet hits the ground, what are (B) the speed and (C) the horizontal distance? **Given Data:** - \( k = 75 \, \text{N/m} \) - \( \delta = 3.4 \, \text{cm} \) - \( m = 15 \, \text{grams} \) - \( h = 1.22 \, \text{m} \) **Student Submissions and Feedback:** 1. **Attempt 1:** \( 2.404 \times 10^{-3} \, \text{m/s} \) - **Feedback:** Incorrect. 2. **Attempt 2:** \( 4989 \, \text{s} \) - **Feedback:** Incompatible units. No conversion found between "s" and the required units. 3. **Attempt 3:** \( 1.199 \times 10^{-3} \, \text{m} \) - **Feedback:** Unable to interpret units. Computer reads units as "^-3m". **Note:** It appears the student is struggling with unit conversion and interpreting results. Ensure to convert all measurements to compatible units (e.g., mass in kilograms, distance in meters) before calculations.
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