Force = Mass x Acceleration
Initial speed of car = 0, Final speed = 40 feet/sec in time 2 seconds
Acceleration = (v-u)/t = (40 - 0)/2 = 20 feet/sec/sec
Force = 3500 x 20 = 70000 pounds/sec/sec
The approximate minimum stream velocity needed to keep a particle in motion, such as a sphere with a diameter of 10 cm, can be estimated using Stokes' law and the concept of terminal velocity. For a particle in a fluid, the minimum velocity needed to keep it suspended typically equals the settling velocity, which depends on factors like fluid density and viscosity. In general, for a 10 cm diameter particle, the minimum velocity can range from about 0.1 to 0.5 meters per second, depending on the specific fluid properties.
10.0 and 9.9 seconds is not the same thing when accuracy is needed, not rounded off numbers. 10.0 and 9.9 seconds is not the same thing when accuracy is needed, not rounded off numbers. 10.0 and 9.9 seconds is not the same thing when accuracy is needed, not rounded off numbers.
12 minutes = 720 seconds
Velocity = Distance ÷ Time. BUT : we need to ensure the measurements used are converted (if needed) to provide a sensible answer. If the answer is required in miles per hour (mph) then the distance of 8 miles is fine but the time of 4 minutes 31 seconds needs to be converted into hours. 31 seconds = 31/60 minutes = 0.516667 mins 4.516667 mins = 4.516667/60 hours = 0.075278 hours Then 8 ÷ 0.075278 = 106.27mph (2dp)
Using the definition of acceleration as change of speed / time, you basically need to know: * A time interval during which the object accelerates. * The velocity at the beginning of this time interval. * The velocity at the end of this time interval.
Simple - look up escape velocity on wikipedia
The only factor needed to calculate change in velocity due to acceleration of gravity is time. The formula to calculate the change in velocity is: change in velocity = acceleration due to gravity * time.
To maintain a constant velocity, the force needed to overcome the frictional force must be equal in magnitude but in the opposite direction. Therefore, a force of 10N is needed to maintain the constant velocity of the sliding object.
Speed and direction of motion.
speed of light
What is the only factor needed to calculate change in velocity due to acceleration of gravity 9.8 ms?
Speed and velocity
force of compression
?Initial velocity?
The mass and velocity of a whirling object are directly related. As the mass of the object increases, more force is needed to maintain the velocity, leading to an increase in velocity. Conversely, decreasing the mass decreases the force needed and therefore the velocity decreases.
The minimum stream velocity needed to carry a particle of sand depends on the size and weight of the sand particle, as well as the characteristics of the stream such as flow rate and turbulence. In general, for typical sand particles, a stream velocity of around 0.3 m/s to 1 m/s is needed to entrain and transport them.
The approximate minimum stream velocity needed to move a particle with a diameter of 6.4 can be determined using the equation for the critical velocity of sediment transport. For a particle of this size, the critical velocity is typically around 0.3-0.4 m/s in most natural streams and rivers.