1. 300 mph
2. 41.675 cm
3. 759.3547M high
4.Vix=2.89 dx=4.9 Viy=18.315
hope this helps!
im only in yr 8 at school by the way
Ok so I have to use kinematic equations to solve these. But I make like a X and Y chart Ex...X|Vix=2.89 dx=? t=? Y|Viy=0 dy=3.7 and so forth.
1. A cliff diver strikes the water 10.3 meters from a cliff 25 meteres high. At what horizontal speed did he leave the cliff?
2. A ball rolls off a level table that is 3.7m high at 2.89 m/s. How far away from the table will it stike the floor?
3. A car leaves a cliff at 55 mph( this part needs converting) and strikes the flat ground below 20m from the cliff. How high is the cliff?
4.A rock is thrown straight up at 18m/s from the top of a 31m high building, goes straight up and then straight down to the street below. Using only one kinematic equation, find the time it takes to reach the street.
1 answer
1 answer