Answer:
0.1 m
Explanation:
From the question given above, the following data were obtained:
Mass (m) of ball = 4 Kg
Acceleration due to gravity (g) = 9.8 m/s²
Energy (E) = 4 J
Height (h) =?
The height (h) can be obtained by using the following formula:
E = mgh
4 = 4 × 9.8 × h
4 = 39.2 × h
Divide both side by 39.2
h = 4 / 39.2
h = 0.1 m
Thus, the value of h is 0.1 m
Answer:
Distance of the second child from the pivot point will be 2.66 m
Explanation:
We have given mass of the first child
Distance from the pivot point
Mass of the second child
We have to find the distance of the second child from the pivot point
For this we have to balance the moment
So
So the distance of the second child from the pivot point point will be 2.66 m
Answer:
I think the answer is 18 km/h
Explanation:
Answer:
SA = 18.6 * t + 186 total distance traveled by A in time t
SB = 24.4 t total distance car B must travel to catch car A
SA - SB = 0 = 18.6 t + 186 = 24.4 t
(24.4 - 18.6) t = 186
t = 186 m / 5.8 m/s = 32 s
Check 18.6 * 32 + 186 = 781 m
24.4 * 32 = 781 m