Answer:
1.275 m
Explanation:
Let the maximum height reached be h.
Here initial velocity, u = 5 m/s
Final velocity, V = 0
Use third equation of motion
V^2 = u^2 + 2 g h
0 = 25 - 2 × 9.8 × h
h = 25/19.6 = 1.275 m
Wearing rubber or stay away from water or/ and a conductor
Answer:
Increase the number of coils.
Explanation:
By increasing the number of coils we can increase the electromagnet.
12m/s
Explanation:
Given parameters:
Distance run by student = 120 meters
Time = 10 seconds
Unknown:
Speed = ?
Solution:
Speed is the rate of change of distance with time:
Speed = 
Now input the parameters:
Speed =
= 12m/s
Learn more:
Speed brainly.com/question/4581270
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