Assuming it is 3210 meters and that the car's velocity is constant, it would be:
v = 3210 / 15 = 214 m/s
50 km/hr
60km per hour west.
900 m/s velocity=meters/sec v=4500/5=900
First you need to find the two different speeds of the car which is the distance/time. We find that the car first travels at an average of 6ms-1 and then after accelerating has a speed of 10ms-1. Acceleration is the rate of change of velocity over time, our change of velocity being 10-6=4ms-1 and the change in time being stated as 3 seconds we can convert this into... (4/3)ms-2
Acceleration = Change in Velocity / Change in Time a = (Final Velocity - Initial Velocity) / (Final Time - Initial Time) = (55-0)/(5-0) = 55/5 a = 11 m/s^2
50 km/hr
60km per hour west.
900 m/s velocity=meters/sec v=4500/5=900
First you need to find the two different speeds of the car which is the distance/time. We find that the car first travels at an average of 6ms-1 and then after accelerating has a speed of 10ms-1. Acceleration is the rate of change of velocity over time, our change of velocity being 10-6=4ms-1 and the change in time being stated as 3 seconds we can convert this into... (4/3)ms-2
Acceleration = Change in Velocity / Change in Time a = (Final Velocity - Initial Velocity) / (Final Time - Initial Time) = (55-0)/(5-0) = 55/5 a = 11 m/s^2
When you have information about the motion of the cars in terms of its velocity of acceleration over a period of time but not its distance from a fixed object.
Just divide distance by time to get speed.30 miles / 1.5 hrs = 20 MPH
90seconds
They are changing velocity. Velocity is the measure of speed and direction
Acceleration is change of velocity divided by time; so if the velocity doesn't change, acceleration is zero.
We would have a lot of horses and carriages around. Civilization wouldn't have expanded as fast and railroads and airplanes would be the main form of long distance travels.
Horsepower and aerodynamics