Physics
posted by James
A car drives straight off the edge of a cliff that is 68 m high. The police at the scene of the accident note that the point of impact is 148 m from the base of the cliff. How fast was the car traveling when it went over the cliff?

Elena
H =g•t²/2 => t =sqrt(2•H/g) = sqrt(2•68/9.8) =3.7 s.
L = v•t => v =L/t = 148/3.7= 39.7 m/s = 143 km/hr =88.8mph
Respond to this Question
Similar Questions

physics
A car drives straight off the edge of a cliff that is 47m hight. The police at the accident note that the point of impact is 122m from the base of the cliff. How fast was the car traveling when it went over the cliff. Calculate the … 
Physics
A car drives straight off the edge of a cliff that is 50 m high. The police at the scene of the accident note that the point of impact is 140 m from the base of the cliff. How fast was the car traveling when it went over the cliff? 
physics
A car drives straight off the edge of a cliff that is 56 m high. The police at the scene of the accident note that the point of impact is 129 m from the base of the cliff. How fast was the car traveling when it went over the cliff? 
Physics
A car drives straight off the edge of a cliff that is 58 m high. The police at the scene of the accident note that the point of impact is 126 m from the base of the cliff. How fast was the car traveling when it went over the cliff? 
Physics
A car drives straight off the edge of a cliff that is 58 m high. The police at the scene of the accident note that the point of impact is 126 m from the base of the cliff. How fast was the car traveling when it went over the cliff? 
Physics
A car drives straight off the edge of a cliff that is 58 m high. The police at the scene of the accident note that the point of impact is 126 m from the base of the cliff. How fast was the car traveling when it went over the cliff? 
physics
A car drives straight off the edge of a cliff that is 58 m high. The police at the scene of the accident note that the point of impact is 126 m from the base of the cliff. How fast was the car traveling when it went over the cliff? 
Physics
A car drives straight off the edge of a cliff that is 68 m high. The police at the scene of the accident note that the point of impact is 148 m from the base of the cliff. How fast was the car traveling when it went over the cliff? 
Physics
A car drives straight off the edge of a cliff that is 60 m high. The police at the scene of the accident observed that the point of impact is 126 m from the base of the cliff. How fast was the car traveling when it went over the cliff? 
physics
A drives straight off the edge of a cliff that is 54m high.the police at the scene of the accident obseve that the point of impact 130m from the base of the cliff.How fast was the car traveling when it went over the cliff?