From
When the ball hits water Y=0
=>0=25.5+18t+(1/2)(-9.81)t2
4.905t2-18t-25.5=0
solving quadratic equation we get
t=4.76 s
How do you do this 7. A ball is thrown vertically downward from the edge of...
7. A ball is thrown vertically downward from the edge of a bridge 25.0 m high with an initial speed of 18.0 m/s. The ball falls all the way down and strikes the water below. Determine the time it takes the ball to strike the water x4.75 s
7. A ball is thrown vertically downward from the edge of a bridge 29.5 m high with an initial speed of 18.0 m/s. The ball falls all the way down and strikes the water below, Determine the time it takes the ball to strike the water. x3.07 Show my other submissions
7. A ball is thrown vertically downward from the edge of a bridge 29.0 m high with an initial speed of 14.0 m/s. The ball falls all the way down and strikes the water below. Determine the time it takes the ball to strike the water.
7. A ball is thrown vertically downward from the edge of a bridge 24.0 m high with an initial speed of 12.0 m/s. The ball falls all the way down and strikes the water below. Determine the time it takes the ball to strike the water. 3.75
A ball is thrown vertically downward from the edge of a bridge 20.0 m high with an initial speed of 13.0 m/s. The ball falls all the way down and strikes the water below. Determine the time it takes the ball to strike the water.
A ball is thrown vertically downward from the edge of a bridge 22.0 m high with an initial speed of 16.0 m/s. The ball falls all the way down and strikes the water below. Determine the time it takes the ball to strike the water.
7. A ball s thrown veriely downward from the edge of a bridge 300 m high with an initial speed of 100 mv's. The ball als ll the way down and strikes the water below. Determine the time it takes the ball to strike the water bridge 30.0 m high with an initial speed of 100 m/s. The ba falls all the way down and
7. A ball is thrown vertically downward from the edge of a bridge 24.0 m high with an initial speed of 12.0 m/s. The ball falls all the way down and strikes the water below. Determine the time it takes the ball to strike the water. 3.75 8. A photographer in a helicopter ascending vertically at a constant rate of 1.2 m/s accidentally drops m above the ground. (a) How long will it take the camera to reach the ground?...
5. A car starting from rest moves in a straight line with a constant acceleration of 1.90 m/s2 for 14.0 s, then slows down to a stop with a constant deceleration of 2.60 m/s2. How far does it travel? X Blank meters 7. A ball is thrown vertically downward from the edge of a bridge 25.0 m high with an initial speed of 18.0 m/s. The ball falls all the way down and strikes the water below. Determine the time...
5. A car starting from rest moves in a straight line with a constant acceleration of 2.20 m/s? for 14.0 s, then slows down to a stop with a deceleration of 2.90 m/s2. How far does it travel? constant meters 6. Two cars are traveling along a straight road. Car (A) maintains a constant speed of 890 kmh; car (B) maintains a constant speed of 115 km/h. Att o, car (B) is 39.0 km behind car A. How far will...