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How long they will be required for a car to go from a speed of 20.0 meter per second to a speed of 25.0 meter per second if the acceleration is 3.0 meter per second?
Wiki User
∙ 12y ago
Assuming the acceleration is 3 metres per second2 since the units given in the question make no sense,
v = u + at where
u = initial speed
v = final speed
a = acceleration
t = time
25 = 20 + 3t
3t = 5 or t = 5/3 = 1.66...
Wiki User
∙ 12y ago
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What does the phrase 1 meter per second mean?
It's a measure of acceleration. It means something is gaining 1 m/s of speed every second it accelerates.
How many newtons is required to make a 7500 kg object go from 0 mph to 60 mph in 1 second?
Convert the speed to meters per second. If you divide this by 1 second, you get the acceleration - since the time is 1 second, the speed and acceleration will be numerically equal. Then use Newton's Second Law: force = mass x acceleration, to find the force.
A train approaching a crossing changes speed from 25 meters per second to 10 meters per second in 240 seconds how can the train's acceleration be described?
Acceleration = (change in speed) / (time for the change)= (10 - 25) / 240 = -15/240 = -0.0625 meter/sec2The acceleration is negative, which is a description of slowing down.
What does the phrase 1 meter per sec per sec mean?
'ms-2' is the SI derived unit of acceleration. It means that a speed X is changing by 1ms-1 for every second of its acceleration.
Why are the units for acceleration meters per second?
Acceleration is not measured in meters/second. Meters/second is a unit of speed. Since acceleration is defined as change of speed divided by time, the units are meters/second/second, usually written as meters/second2.
What is the SI unit for constant speed?
There is no "unit for constant speed".The SI unit for speed (just "speed") is meters per second. Constant speed means there is no acceleration; the unit for acceleration is meters per second squared.
How much time is required to accelerate a 10 kg object from 15 meter per sec to 75 meter per sec if the net force is 1000 Newtons?
Change in speed = (acceleration) x (time)Time = change in speed/accelerationBut also,Force = (mass) x (acceleration)Acceleration = force/massSo Time = change in speed/force/massTime = (change in speed) x (mass)/force = 60 x 10/1,000 = 0.6 second
If speed is measured in meter per second and time is measured in seconds what is the Si unit for acceleration?
It is metres per second per second or metres per second squared.
What does the phrase 1 meter per second mean?
It's a measure of acceleration. It means something is gaining 1 m/s of speed every second it accelerates.
How many newtons is required to make a 7500 kg object go from 0 mph to 60 mph in 1 second?
Convert the speed to meters per second. If you divide this by 1 second, you get the acceleration - since the time is 1 second, the speed and acceleration will be numerically equal. Then use Newton's Second Law: force = mass x acceleration, to find the force.
What is one Newton defined as?
That's the SI unit of force. It is defined by Newton's Second Law: it is the force required to give a mass of 1 kilogram an acceleration of 1 meter/second2.That's the SI unit of force. It is defined by Newton's Second Law: it is the force required to give a mass of 1 kilogram an acceleration of 1 meter/second2.That's the SI unit of force. It is defined by Newton's Second Law: it is the force required to give a mass of 1 kilogram an acceleration of 1 meter/second2.That's the SI unit of force. It is defined by Newton's Second Law: it is the force required to give a mass of 1 kilogram an acceleration of 1 meter/second2.
A train travels at 30 meters per second and stops in 1 minute what its acceleration?
Average acceleration over an interval of time = (final speed - initial speed) / (time for the change)= [ (0 - 30) / 1 ] (meters / second-minute) = [ (0 - 30) / (60) ] (meters / second-second) =-0.5 meter / sec2
A train approaching a crossing changes speed from 25 meters per second to 10 meters per second in 240 seconds how can the train's acceleration be described?
Acceleration = (change in speed) / (time for the change)= (10 - 25) / 240 = -15/240 = -0.0625 meter/sec2The acceleration is negative, which is a description of slowing down.
What are units of acceleration?
Acceleration has units of speed / time. The standard SI-unit is meter/second/second, usually written as meter/second2. Other units of distance/time/time can also be used, but it is convenient (for equations) to use a set of consistent units.
What is a speedboat's acceleration if its speed uniformly from twenty meters per second to thirtyone meters per second in a distance of 210 m?
.052 meters per second or .09 per meter
What are some examples of unit in the SI?
There are seven base SI units: * Length - meter (m) * Mass - kilogram (kg) * time - second (s) * Electric Current - Ampere (A) * Thermodynamic Temperature - Kelvin (K) * Luminous Intensity - Candala (cd) Other quantities, called derived quantities, are defined in terms of the seven base quantities via a system of quantity equations. The SI derived units for these derived quantities are obtained from these equations and the seven SI base units. Examples of such SI derived units are: * area - m2 * volume - m3 * speed - m/s * acceleration - m/s2 * force - m kg s-2 (or Newtons)
What does the phrase 1 meter per sec per sec mean?
'ms-2' is the SI derived unit of acceleration. It means that a speed X is changing by 1ms-1 for every second of its acceleration.
