Math Questions and Answers

Start Your Free Trial

A stone is thrown straight up from the edge of a roof, 1000 feet above the ground, at a speed of 14 feet per second. What is the velocity of the stone when it hits the ground?

Expert Answers info

Eric Bizzell eNotes educator | Certified Educator

briefcaseTeacher (K-12)


calendarEducator since 2011

write3,155 answers

starTop subjects are Math, Science, and Business

The equation for displacement is `s(t)=-16t^2+v_0t+s_0` where `v_0` isthe initial velocity and `s_0` is the initial displacement. We adopt the convention that velocity towards the earth is negative:

So we have...

(The entire section contains 107 words.)

Unlock This Answer Now


check Approved by eNotes Editorial