What forces act on a skier? External forces are acting on the skier from outside the body. These forces affect the skier and are responsible for moving the skier. Example: The force of gravity and friction between the snow and the skis are examples of external forces. What is the air resistance of a skier? […]
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What is the runner’s centripetal acceleration? What is the centripetal acceleration of the runner, and what agent exerts force on the runner? ac. = v2 (8.8 m/s)2. = 25 m = 3.1 m/s², the frictional force of the track acting on the runner’s shoes exerts the force on the runner. What supplies the force needed
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What is the momentum of a toy car of mass 200 g moving? Solution: The momentum of a toy car weighing 200 g and moving with a velocity of 5 m/s is 1 kg m/s. What is a toy car of mass 6kg moving in a straight path experiences a net force given by the
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Which best describes Lenny’s error? Expert-Verified Answer In Step 3, he should have multiplied 6.25 J per m2/s2 by 2 instead of dividing it by 2 best describes Lenny’s error. What is the kinetic energy of a 620.0 kg roller coaster? Answer: The kinetic energy is equal to 25,110 J. What is the kinetic energy
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What is terminal speed when a skydiver has reached? Terminal Velocity, Human By changing body positions, skydivers can alter their terminal velocity. While the standard belly-to-earth position results in a terminal velocity of around 120 mph, the terminal velocity of a human flying headfirst can increase the speed to 150-180 mph, and potentially reach 200
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Does the velocity of the cannon ball matter or will it hit the monkey at any velocity? The bullet’s initial velocity, or the distance between hunter and monkey, is irrelevant to the final outcome and affects only the height above the ground where bullet meets monkey. Why did they move the bullet being dropped to
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What is a body of mass 60 kg is moving with a speed 50 meters per second? Expert-Verified Answer so, the kinetic energy of a body having mass 60 kg moving with speed of 50 m/s will be 75,000 Joule. How fast should a man weighing 60 kg? Expert-Verified Answer. The man must run with
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Which of the following situations is true and possible if the velocity of a body is zero then acceleration can be non zero? Yes, it is possible when an object is thrown upward then at the highest point its velocity is zero and it has acceleration due to gravity, which is finite. Was this answer
Which of the following features helps to protect passengers in a front end collision? Air bags are used in cars as a safety feature to protect front-seat passengers. Why is a soccer ball at rest on the field when it suddenly? A soccer ball is at rest on the field when it suddenly encounters a
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How fast should a man weighing 60 kg? Expert-Verified Answer. The man must run with a velocity of 5m/s so that his kinetic energy is 750 J. Given, Mass of the man = 60kg. At what speed a person having 60kg mass should run to acquire 750 J of kinetic energy? or v=√2Ekm=√2×75060=5m/s. What is
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