A train is travelling along a straight track at constant velocity from Western Station to Eastern station. The mile markers incr
1 answer:
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Answer:
m/s²
m/s²
Explanation:
Normal or centripetal acceleration measures change in speed direction over time. Its expression is given by:
Formula 1
Where:
: Is the normal or centripetal acceleration of the body ( m/s²)
v: It is the magnitude of the tangential velocity of the body at the given point
.(m/s)
r: It is the radius of curvature. (m)
Newton's second law:
∑F = m*a Formula ( 2)
∑F : algebraic sum of the forces in Newton (N)
m : mass in kilograms (kg)
Data
r= 120 m
Problem development
We replace data in formula (1) to calculate centripetal acceleration:
m/s²
m/s²
We replace data in formula (2) to calculate centripetal force Fc) :