Consider the skier on a slope shown in Fig.2. Her mass including equipment is 70 kg.Calculate her acceleration if friction is known to be 45 N
Question
Consider the skier on a slope shown in Fig.2. Her mass including equipment is 70 kg.Calculate her acceleration if friction is known to be 45 N
Solution
To calculate the acceleration, we need to use Newton's second law of motion, which states that the acceleration of an object is equal to the net force acting on it divided by its mass.
The net force acting on the skier is the force of friction acting against her motion. This force is given as 45 N.
So, the acceleration (a) can be calculated using the formula:
a = F/m
where: F is the net force (45 N) m is the mass of the skier (70 kg)
Substituting the given values into the formula, we get:
a = 45 N / 70 kg = 0.64 m/s²
So, the acceleration of the skier is 0.64 m/s².
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