Lora (of mass 47.4 kg) is an expert skier. She
1 answer:
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Answer:
The done by the vertical component of force is zero.
Explanation:
Given data,
The mass of the textbook the women pushes horizontally, m = 3.2 kg
The displacement of the textbook, S = 3.5 m
Let the force of the women acts on the book horizontally,
Therefore, the horizontal component of force is maximum and the vertical component is zero.
If F is the force applied by the women, then the horizontal and vertical component of the force is,
Since the force is acting along with the horizontal x component, the vertical component of the force is zero.
Hence, the done by the vertical component of force is zero.
Answer:
The maximum range m
Explanation:
Given,
The initial velocity of the car, u = 30 m/s
The height of the cliff, h = 50 m
Let the car drives off the cliff with a horizontal velocity of 30 m/s.
The formula for a projectile that is projected from a height h from the ground is given by the relation
m
Where,
g - acceleration due to gravity
Substituting the values in the above equation
= 132.72 m
Hence, the car lands at a distance, m