a train traveling at 72 km/h crosses a platform in 30 seconds what is the length of the platform in meters
1 answer:
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Answer:
26.56°
Explanation:
given,
horizontal distance travel by the ant = 2 m
vertical distance travel by the ant = 1 m
angle of the ant above the initial point = ?
using trigonometric function
θ is the angle of the ant form initial position
h is the height on the wall
x is the horizontal distance covered by the ant
hence, the angle made by the ant from the initial position is equal to 26.56°
Answer:
Magnetic force, F = 0.6 N
Explanation:
It is given that,
Length of the wire, L = 30 cm = 0.3 m
Current carrying in the wire, I = 0.5 A
Uniform magnetic field, B = 4 T
To find,
The magnetic force
Solve,
A force is exerted by the wire in the magnetic field that is given by :
Here,
F = 0.6 N
Therefore, the magnetic force exerted by the wire in the magnetic field is 0.6 N