Question

The speed of a rock is 180 km/h. If its displacement was 9000 m, calculate: a) Its speed in m/s. b) How long does it take? Помогите пожалуйста!! Срочно​

Answer 1

A) 50 m/s
b) 180 s = 3 min

Answer 2

a) To convert the speed from km/h to m/s, we need to divide the speed in km/h by 3.6 since there are 1000 meters in a kilometer and 3600 seconds in an hour.

Speed in m/s = (Speed in km/h) / 3.6

Given that the speed of the rock is 180 km/h, we can calculate:

Speed in m/s = 180 km/h / 3.6 = 50 m/s

Therefore, the speed of the rock is 50 m/s.

b) To calculate the time taken, we can use the formula:

Time = Distance / Speed

Given that the displacement of the rock is 9000 m and the speed is 50 m/s, we can substitute these values into the formula:

Time = 9000 m / 50 m/s = 180 seconds

Therefore, it takes 180 seconds for the rock to travel a displacement of 9000 meters.