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
Speed and velocity can be found by dividing the distance traveled by the time taken to travel that distance. Speed is scalar and only considers the magnitude of motion, while velocity is a vector quantity that includes both the magnitude and direction of motion. To calculate direction (velocity), you must also consider the car's displacement.
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
Just divide distance by time to get speed.30 miles / 1.5 hrs = 20 MPH
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.
90seconds
Yes, two cars moving with the same velocity can collide if their paths intersect or if one fails to stop in time to avoid hitting the other. Velocity only describes the speed and direction of an object's motion, not its position. So, the cars can still collide if they have the same velocity.
Both cars would have the same momentum since momentum depends on both mass and velocity, and in this case, the cars have the same velocity and mass. So, the momentum of both cars would be equal.
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.