1.Richard throws his calculator off a 150m cliff. The height of the calculator above ground (in meters) after t is given: h(t)=-5t^2+25t+150
a)Find the maximum height that the calculator reaches and when this occurs?
b)On the way down the calculator hits a rock which is 10m above the ground smashing it into a thousand little pieces. Find the time the calculator was in flight.
2.A 5 meter-long ladder leans against the wall;its bottom is 3 meters from the wall. How much would the lower end have to be pulled away from the wall so that the top of the ladder would slide down the same amount?
3.A ball is thrown upward at 112/ft sec
a)How high is it after 2 seconds?
b)How long does it take for the ball to reach 96ft high?
c)How high will it reach? How long will it take to reach the ground again?
Can anyone explain to me the steps to finding the answers??
THANKS FOR YOUR HELP!><
a)Find the maximum height that the calculator reaches and when this occurs?
b)On the way down the calculator hits a rock which is 10m above the ground smashing it into a thousand little pieces. Find the time the calculator was in flight.
2.A 5 meter-long ladder leans against the wall;its bottom is 3 meters from the wall. How much would the lower end have to be pulled away from the wall so that the top of the ladder would slide down the same amount?
3.A ball is thrown upward at 112/ft sec
a)How high is it after 2 seconds?
b)How long does it take for the ball to reach 96ft high?
c)How high will it reach? How long will it take to reach the ground again?
Can anyone explain to me the steps to finding the answers??
THANKS FOR YOUR HELP!><