15sec
* * * * *
The question is incorrect and so got a wrong answer. Acceleration cannot be measured in m sec but m sec-2. The previous answerer, assumed that the questioner had meant velocity, not acceleration. If the velocity had been 2 m sec-1 then the time would have been 15 seconds. But it was not even m sec-1! It seemed the units were wrong.
If you assume that acceleration = 2 m sec-2 then
t2 = 2s/a = 2*30/2 = 30
and so
t = sqrt(30) seconds = 5.48 seconds (approx)
The distance a car travels when it starts from rest and accelerates to a certain speed depends on the acceleration of the car and the time it takes to reach that speed. The formula to calculate this distance is d 0.5 a t2, where d is the distance, a is the acceleration, and t is the time taken to reach the speed.
The ë v is the same as the ending velocity when the object starts from rest and accelerates at a constant rate for a certain amount of time before reaching that velocity.
The distance traveled by the car can be calculated using the equation (s = \frac{1}{2}at^2), where (s) is the distance, (a) is the acceleration, and (t) is the time. Plugging in the values, we have (s = \frac{1}{2} \times 10 \times (4)^2 = 80) meters. Therefore, the car will travel 80 meters in 4 seconds.
Sydney's car accelerates at 5.9 m/s^2, while Sean's car accelerates at 3.6 m/s^2. Sean starting 1.0 second early gives him an initial distance advantage, but Sydney's higher acceleration rate means she will catch up and overtake Sean at some point during the race. The exact point of overtaking can be calculated by comparing their positions over time.
Free fall from rest typically refers to an object falling under the influence of gravity without any initial velocity. This means that the object starts falling from a stationary position and solely accelerates due to gravity without any other forces acting on it. Objects in free fall from rest will accelerate at a rate of approximately 9.81 m/s^2 on Earth.
sqrt(30) seconds = 5.48 seconds (approx)
60.912 meters in that time
30m/s
160 m
The distance a car travels when it starts from rest and accelerates to a certain speed depends on the acceleration of the car and the time it takes to reach that speed. The formula to calculate this distance is d 0.5 a t2, where d is the distance, a is the acceleration, and t is the time taken to reach the speed.
The ë v is the same as the ending velocity when the object starts from rest and accelerates at a constant rate for a certain amount of time before reaching that velocity.
Acceleration = (change in speed) / (time for the change)3 = (30) / (time)3 x (time) = 30time = 30/3 = 10 seconds
The force accelerates the body, a=F/m.
The distance traveled by the car can be calculated using the equation (s = \frac{1}{2}at^2), where (s) is the distance, (a) is the acceleration, and (t) is the time. Plugging in the values, we have (s = \frac{1}{2} \times 10 \times (4)^2 = 80) meters. Therefore, the car will travel 80 meters in 4 seconds.
The second car accelerates
How pluse rate change at rest?
Acceleration cannot be measured in metres per second. There is, therefore a fundamental problem with the question.