from her window a girl drops a water filled balloon to the ground 6m below. fint time taken to reach the ground
pls answer this ASAP
thank you
Answers
Answered by
8
initial velocity = 0
distance = 6 m
acceleration = 9.8 m/s (due to gravity)
time = ?
s = ut + 1/2aT^2
6 = 0*t + 1/2*9.8*t^2
6 = 4.9t^2
t^2 = 6/4.9
t = under root 1.22
t = time = 1.104 seconds (aproxx)
Answered by
24
Answer:-
Given:-
Height of the initial position to the final position = 6 metres
Acceleration due to gravity = + 10 m/s² [Downward]
Initial velocity (u) = 0 m/s
To Find: Time taken by the water balloon to reach the ground.
We know,
h = ut + ½gt²
where,
- h = Height,
- u = Initial velocity of the particle,
- g = Acceleration due to gravity &
- t = Time taken.
But here,
h = ½gt² (Because u = 0 m/s; 0 × t = 0)
∴ ½(10 m/s²)t² = 6 m
→ (5 m/s²)t² = 6 m
→ t² = (6 m)/(5 m/s²)
→ t² = 6/5 s²
→ t = √6/5 × √s²
→ t = 1.095 s
∴ The balloon will take approximately 1 second to reach the ground.
Similar questions