Answer:
6.7 seconds
Step-by-step explanation:
Let's calculate the maximum height covered by the object
Max height= U²Sin²tita/2g
Where g is acceleration due to gravity
Max height= 40²(sin90)²/(2*9.81)
Max height= 1600/19.62
Max height=81.55 m
Total max height= 30+81.55
Total max height= 111.55 m
Time t it will take to travel from the max height at acceleration of 4.9 m/s²
S= ut + ½at²
u= 0 at Mac height
S= 111.5 m
111.5 = ½(4.9)t²
223/4.9= t²
45.5= t²
6.745 seconds= t
6.7 seconds= t
It would be 31 I do believe
Answer:
N1356
Step-by-step explanation: I hope it helps :)
Answer:
D.x=4
Step-by-step explanation:
5(x-6)+3=-7
distribute 5(x-6) which would be 5x-30+3=-7
5x-27=-7
add 27 to -7
5x=20
then divide
x=4
Answer:
It may be 20
Step-by-step explanation:
