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.