Answer:
third person limited
Explanation:
Answer:
A. After 3.57 seconds, the racecar will overtake the stock car
B. distance travelled = 37. 59 m
C. v₁ = 21.06 m/s
v₂ = 16.45 m/s
Explanation:
Using, S = ut + 1/2at² where s is displacement, u is initial velocity, t is time, a is acceleration.
Car 1 has acceleration a = +5.9 m/s²; Car 2 has acceleration a = +3.6 m/s²
A. The time for the two cars to be directly side by side be t.
Beyond time, t, Car 1 will overtake Car 2.
Since both cars are starting from rest, initial velocity, u, = 0
S = 1/2at²
For car 1, time t = t - 1.0 since it started 1.0 second behind car 2
s₁ = 1/2 * 5.9 * (t - 1)²
s = 2.95t² - 5.9t + 2.95
For car 2; s₂ = 1/2 * 3.6 * t² = 1.8t²
at time t, the displacement of the two cars will be equal; s₁ = s₂
2.95t² - 5.9t + 2.95 = 1.8t²
1.15t² - 5.9t + 2.95 = 0
solving for t using the quadratic formula
t = (5.9 ± 4.61)/2.3
t = 4.57 s or 0.56 s
since t cannot be less than 1.0 s, t = 4.57 s
Time for car 1 = (4.57 - 1.0) s = 3.57 s
Therefore, after 3.57 seconds, the racecar will overtake the stock car
B. The distance travelled by both cars, s = 1/2 * 3.6 * 4.57² = 37.59 m OR
s = 1/2 * 5.9 * 3.57² = 37.59 m
distance travelled = 37. 59 m
C. Using v² = u² + 2as; since u = 0, v² = 2as
velocity of car 1; v₁² = 2 * 5.9 * 37.59
taking square root of both sides
v₁ = 21.06 m/s
velocity of car, v₂² = 2 * 3.6 * 37.59
taking square root of both sides
v₂ = 16.45 m/s
Which of the following would be the MOST appropriate opening line for a digital story?
Answer: When I was born, my mother brought me home to her mother’s house.
Explanation:
A digital story should be personal, and should be told from the first-person point of view.
journal entry
topic sentence
thought shot
thought shot should be the answer