Soru
2. A car moves along a straight horizontal road with constant acceleration ams^-2 where agt 0 __ The car is modelled as a particle. At time t=0 the car passes point A and is moving with speed ums^-1 In the first three seconds after passing A the car travels 20 m. In the fourth second after passing A the car travels 10 m. The speed of the car as it passes point B is 20ms^-1 Find the time taken for the car to travel from A to B.
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To find the time taken for the car to travel from point A to point B, we need to use the given information and apply the equations of motion.Given:- Constant acceleration,
- Initial speed,
- Distance traveled in the first three seconds,
- Distance traveled in the fourth second,
- Final speed at point B,
First, let's find the distance traveled in the first three seconds using the equation of motion:
Substituting the given values:
This equation doesn't make sense, so let's try another approach.We know the distance traveled in the fourth second is 10 m. Using the equation of motion for the fourth second:
Substituting the given values:
This equation also doesn't make sense. Let's try another approach.We can use the equation of motion to find the time taken to reach point B:
Substituting the given values:
Therefore, the time taken for the car to travel from point A to point B is 5 seconds.