Math Problem Statement

5th solution

5th solution

Solution

To find the horizontal range of a ball projected upwards with a velocity of 25 m/s at an angle of 3535^\circ with the horizontal, you can use the formula for the horizontal range RR of a projectile:

R=v2sin2θgR = \frac{v^2 \sin 2\theta}{g}

Where:

  • v=25m/sv = 25 \, \text{m/s} is the initial velocity,
  • θ=35\theta = 35^\circ is the angle of projection,
  • g=9.8m/s2g = 9.8 \, \text{m/s}^2 is the acceleration due to gravity.

Substitute the given values into the formula:

R=(25)2sin(2×35)9.8R = \frac{(25)^2 \sin(2 \times 35^\circ)}{9.8}

Calculate sin(70)\sin(70^\circ):

sin(70)0.9397\sin(70^\circ) \approx 0.9397

Now, substitute and solve:

R=625×0.93979.8R = \frac{625 \times 0.9397}{9.8}

R587.31259.859.93mR \approx \frac{587.3125}{9.8} \approx 59.93 \, \text{m}

The horizontal range of the ball is approximately 59.93m59.93 \, \text{m}.

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Math Problem Analysis

Mathematical Concepts

Projectile Motion
Trigonometry

Formulas

R = (v^2 * sin(2θ)) / g

Theorems

Kinematic equations for projectile motion

Suitable Grade Level

Grades 10-12