Velocity/displacement/time problem

  • Thread starter Thread starter xotash
  • Start date Start date
Click For Summary
SUMMARY

The discussion centers on a physics problem involving a ball thrown upwards from a height of 15 meters with an initial velocity of 30 m/s. The relevant equations of motion, specifically the SUVAT equations, are employed to determine the time it takes for the ball to hit the ground. The initial velocity (V1) is 30 m/s upwards, and the final velocity (V2) at the peak is 0 m/s. The solution requires careful consideration of the signs in the equations based on the chosen coordinate system.

PREREQUISITES
  • Understanding of kinematic equations, specifically SUVAT equations.
  • Knowledge of initial and final velocity concepts in physics.
  • Ability to interpret motion in a vertical coordinate system.
  • Basic algebra skills for solving equations.
NEXT STEPS
  • Study the derivation and application of SUVAT equations in various motion scenarios.
  • Learn how to analyze projectile motion, including upward and downward trajectories.
  • Explore the effects of gravity on objects in free fall and their mathematical representation.
  • Practice solving similar problems involving initial velocities and heights in physics.
USEFUL FOR

Students studying physics, educators teaching kinematics, and anyone interested in understanding motion dynamics and problem-solving techniques in mechanics.

xotash
Messages
1
Reaction score
0
1. Homework Statement

A person on an apartment balcony holds a ball over the balcony and throws it directly upwards with an initial velocity of 30 m/s [up]. The ball was thrown from 15 m above the ground. How long will it take for the ball to hit the ground?

Homework Equations




The Attempt at a Solution



The givens I have here so far I think is:
V1 = 30 m/s [up]
V2 = 0 m/s
∇d = 15 m
 
Physics news on Phys.org
Why do you think v2=0?
You don't need this anyway.

Draw your y-axis and choose a location for the origin, and then write down the information you are given taking care with the signs.

Then you can just choose the most appropriate suvat equation.
 

Similar threads

Question about Projectile Motion: Throwing a Flower Pot from a Balcony
  • · Replies 18 ·
Replies
18
Views
2K
Oblique soccer shot calculation task
  • · Replies 38 ·
2
Replies
38
Views
4K
Solving a Ball Thrown off a Cliff: How Long Does it Take?
  • · Replies 4 ·
Replies
4
Views
2K
Where can I find Similar Kinematics Questions?
  • · Replies 2 ·
Replies
2
Views
1K
Work done during a collision -- Change in Kinetic Energy & change in Momentum
  • · Replies 1 ·
Replies
1
Views
2K
Projectile Motion Problem: Kicking a soccer ball over a fence
  • · Replies 11 ·
Replies
11
Views
3K
AP Physics C Momentum Problem: A dart launched horizonally by a spring gun
  • · Replies 22 ·
Replies
22
Views
5K
Calculating a ratio in Free Fall motion
  • · Replies 7 ·
Replies
7
Views
5K
Comparing Balls' Velocity & Time in the Air
  • · Replies 3 ·
Replies
3
Views
2K
Golf club 🏌️and ball ⛳ impulse problem
  • · Replies 19 ·
Replies
19
Views
3K