1 watt = 1 joule/sec; 1 joule = 1 N*m (Newton * meter)
1000 N * 4 m / 2 sec = 2000 N*M/sec = 2000 watts
But this is just the power to lift the load and does not take into account any friction or the power required to create the magnetic field in the windings.
approx. 50 seconds
The answer will depend on the conditions under which the body is moving and how sophisticated your calculations need to be. On (or near) the surface of the earth, if the body had velocity v0 ms-1 at time t0 seconds then in the simple model, its velocity at time t seconds will be v = v0 - 9.81*t ms-1 (approx). The vertical distance will be v0t - 9.81t2 metres. In a more sophisticated model you would include air resistance. Also if v0 is large, it is possible that the height attained is large enough to affect deceleration due to gravity.
Multiply by a value in seconds, that way you find out the distance. The distance will be in metres which will be travelled in a certain amount of seconds
Speed = distance/Time = 1000 metres/100 seconds = 10 metres per second.
Distance divided by velocity = time
When following large trucks, maintain at least a minimum of a ______ second following distance.
2
I usually leave 5 to 6 seconds minimum following distance under those condition, and have had no accidents . . .
The distance depends upon the speed. It is the distance required to result in a time interval of at least two seconds.It depends on your speed.
At least 2 seconds of travel time between vehicles.
Actually, 2 seconds is NOT a safe following distance. Minimum safe following distance is 5 seconds. Yes, it works at any legal speed in dry weather.
Allow a minimum of 3 seconds of braking distance at 55 MPH, add an extra second for each 5 MPH increase in speed.
Approx. 50 seconds
20 Seconds Minimum
His vertical is 38.6, and he runs a40 yard dash in 4.85 seconds
approx. 50 seconds
At least 2 seconds behind the vehicle in front of you is recommended. More in bad weather/road conditions.