Answer:
The value of t₁ is 5.119 sec.
Explanation:
Given that,
Acceleration = 12.7 m/s²
Total distance
Time = 94.6 sec
We need to calculate the distance
Using equation of motion
Put the value into the formula
...(I)
We need to calculate the velocity
Using equation of motion
Put the value into the formula
The sled while moves with constant velocity v for time t₂
Using formula of distance
The total distance is
Put the value of s₁ and s₂
...(II)
The total time is
....(III)
From equation (II) and (III)
After solving
Hence, The value of t₁ is 5.119 sec.
Answer:
meter
Explanation:
Displacement (symbolized d or s ), also called length or distance, is a one-dimensional quantity representing the separation between two defined points. The standard unit of displacement in the International System of Units ( SI ) is the meter (m). Displacement is usually measured or defined along a straight line.
Answer : What is the effect of time and temperature on dissolution of different size of antacid tablets?
Explanation : According to the experiment performed as given in the question; first part deals with the temperature and time of reaction study of the antacid tablet.
In the second part, the size is altered and it reaction time is studied.
In complete experiment three factors are majorly focused i.e. time, temperature and size.
Based on this, one can frame many scientific questions, one example is given below;
Question : What is the effect of time and temperature on dissolution of different size of antacid tablets?
2.4g
explanation: mass/volume=density
36/15=2.4
Answer:
Explanation:
Initial velocity, u = 85 m/s
Final velocity, v = 45 m/s
Time, t = 4.5 s
We need to find the acceleration of the dragster. The rate at which the velocity of an object changes is called the acceleration of an object. It can be given by :
So, the acceleration of the dragster is and it is deaccelerating.