Uniform Acceleration: Solve for Initial Velocity

davon806 · Oct 7, 2012

Homework Statement

Help please,I have no idea...This is the last question of my hw

A boy stands at the edge of a cliff which is 30m above the ground and throws a ball vertically upwards.It hits the ground 3.0s later.Find the initial velocity of the ball.

Homework Equations

The Attempt at a Solution

lewando · Oct 7, 2012

Can you think of any kinematic (constant acceleration) equations that might apply?

Uniform Acceleration: Solve for Initial Velocity

Homework Statement

Homework Equations

The Attempt at a Solution

Discussion

A very simple moments question

Expansion or compression -- which is more energy efficient?

What force causes precession?

Simple kinematics problem — falling from a geostationary satellite

Why does a fan cool you in a sealed room if it adds heat?

Insights Revisiting the Velocity-Time Function

Insights Remote Operated Gate Control System

Insights AI Enriched Problem Solving

Insights Thinking Outside The Box Versus Knowing What’s In The Box

Insights Why Entangled Photon-Polarization Qubits Violate Bell’s Inequality

Insights Quantum Entanglement is a Kinematic Fact, not a Dynamical Effect

Uniform Acceleration: Solve for Initial Velocity

Homework Statement

Homework Equations

The Attempt at a Solution

Discussion

Similar threads

High School In uniform acceleration, mean velocity ##\bar v = \frac{v_0+v}{2}##?