A 0.3-lb apple falls out of a tree from a height of 4.7 m. What is the momentum of the apple just before it hits the ground?
A 0.3-lb apple falls out of a tree from a height of 4.7 m. What is...
- Part A-An apple falls from a tree and drops straight to the ground. Its initial height was 1.1 m, and its speed just before hitting the ground was 3.5 m/s. If air resistance does -8.0x10-2 J of work on the apple, what is the mass of the apple? 2.5x10-2 kg 1.7x10-2 kg 4.7x10-3 kg 3.2x10-2 kg
When an apple falls from a tree what happens to its gravitational potential energy just as it reaches the ground? After it strikes the ground?
Suppose an acorn with a mass of 3.17 g falls off a tree. At a particular moment during the fall, the acorn has a kinetic energy of 0.299 J and a potential energy of 0.167 J with respect to the ground. How does the acorn's potential and kinetic energy change as it falls? O Both potential and kinetic energy decrease. Polential encrgy increases and kinetic energy decreases. Potential energy decreases and kinetic energy increases. O Both potential and kinetic energy...
A ball with a mass of 2 kg falls from a height of 3 m on the ground in point B. From there the ball bounces (coefficient of restitution e = 0.8) to come to the ground a little later in point C. A 3 m B 26 o The speed (in x and y direction) of the ball just before it hits the ground in point B. U o The speed (in x and y direction) of the ball...
While unrealistic, we will examine the forces on a leg when one falls from a height by approximating the leg as a uniform cylinder of bone with a diameter of 2.3 cm and ignoring any shear forces. Human bone can be compressed with approximately 1.7 × 108 N/m2 before breaking. A man with a mass of 70 kg falls from a height of 7 m. Assume his acceleration once he hits the ground is constant. For these calculations, g =...
An apple accelerates as it falls from a tree is which law?
Q 6.28: As a 3.3-N apple falls from a 3.5-m tree under the influence of gravity, a constant air drag force of 0.22 N acts on the apple. Determine the work done on the apple by the conservative force in this situation.
Part 1 A gust of wind blows an apple from a tree. As the apple falls, the force of gravity on the apple is 9.27 N downward, and the force of the wind on the apple is 1.37 N to the right. What is the magnitude of the net external force on the apple? Answer in units of N. Part 2 What is the direction of the net external force on the apple (measured from the downward vertical, so that...
25. An iron ball is dropped from rest, it falls 250.9 m before hitting the ground. What is the velocity just before it hits the ground ?
A ball is shot from the ground into the air. At a height of 9.80 m, its velocity is v = (8.50i + 4.00j) m/s, with i horizontal and j upward. To what maximum height does the ball rise? What total horizontal distance does the ball travel? What is the magnitude of the ball's velocity just before it hits the ground? What is the angle (below the horizontal) of the ball's velocity just before it hits the ground?