Math Problem Statement

A deer jumps at 3.75 meters per second at a 46.3 degree angle to the horizon. How long does it take for the deer to reach maximum height? Time equals blank seconds; fill in the blank.

Solution

To find the time it takes for the deer to reach maximum height, we focus on the vertical component of the deer’s velocity. The formula for the time to reach maximum height in projectile motion is given by:

tmax=v0ygt_{\text{max}} = \frac{v_{0y}}{g}

Where:

  • v0yv_{0y} is the initial vertical velocity (the vertical component of the initial velocity),
  • gg is the acceleration due to gravity (approximately 9.8m/s29.8 \, \text{m/s}^2).

First, let's find v0yv_{0y}, the vertical component of the initial velocity. This can be found using the formula:

v0y=v0sinθv_{0y} = v_0 \sin \theta

Where:

  • v0=3.75m/sv_0 = 3.75 \, \text{m/s} (the initial velocity),
  • θ=46.3\theta = 46.3^\circ (the angle of projection).

Let's calculate v0yv_{0y}:

v0y=3.75sin(46.3)v_{0y} = 3.75 \sin(46.3^\circ)

Next, we can calculate tmaxt_{\text{max}}:

tmax=v0y9.8t_{\text{max}} = \frac{v_{0y}}{9.8}

Let me calculate this.The time it takes for the deer to reach maximum height is approximately 0.2770.277 seconds.

Would you like more details or have any further questions?

Here are five related questions to explore:

  1. What is the total time the deer spends in the air?
  2. What is the maximum height the deer reaches?
  3. How far does the deer travel horizontally before landing?
  4. What is the horizontal velocity of the deer during its motion?
  5. How would the results change if the deer jumps at a different angle?

Tip: In projectile motion, horizontal velocity remains constant, while vertical velocity changes due to gravity.

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Math Problem Analysis

Mathematical Concepts

Projectile Motion
Trigonometry
Kinematics

Formulas

t_max = v_0y / g
v_0y = v_0 * sin(θ)

Theorems

Newton's Second Law of Motion

Suitable Grade Level

Grades 9-11