Answer:
1.28 m
Explanation:
You are given the initial speed that is 5 m/s. Since the coin is sent upwards, this means that the speed is positive according to the co-ordinate system in the y axis. Additionally, there is the gravity that curbs the coin in the opposite direction making the final speed becomes zero at the highest point, so the gravity takes negative sign.
So, from the explanation we have:
so, we use the following equation to find y (hight)
Answer: 2.34s
Explanation:
Given the following :
Horizontal Velocity(V) = 3.22m/s
Horizontal Distance = 7.54m
Therefore, the time spent in the air can be calculated thus:
Using the relation:
Speed = distance / time
3.22m/s = 7.54m / time
Time = 7.54m / 3.22m/s
Time = 2.34s
Average speed = (total distance) / (total time to cover the distance)
= (90km + 60km) / (1hr + 3hr)
= (150 km) / (4 hr)
= 37.5 km/hr .
The top of the WINDOW is 19 meters from the ground. also steel balls dont bounce.
