26.) A mass of 5kg is on top of a building of height 10m. Calculate its...
26.) A mass of 5kg is on top of a building of height 10m. Calculate its potential energy.
The mass then falls at a speed of 8 m/s in 4 sec, find its KE and momentum p. What is the Force and impulse the mass transfers to the ground?
27.) For problem 26 above, find the work done by gravity if the mass falls a distance 2 meters. If the mass falls for 11 seconds, what is the energy expended by this force?
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26.) A mass of 5kg is on top of a building of height 10m.
Calculate its...
26.) A mass of 5kg is on top of a building of height 10m. Calculate its...
26.) A mass of 5kg is on top of a building of height 10m. Calculate its potential energy. The mass then falls at a speed of 8 m/s in 4 sec, find its KE and momentum p. What is the Force and impulse the mass transfers to the ground? 27.) For problem 26 above, find the work done by gravity if the mass falls a distance 2 meters. If the mass falls for 11 seconds, what is the energy expended...
26.) A mass of 5kg is on top of a building of height 10m. Calculate its...
26.) A mass of 5kg is on top of a building of height 10m. Calculate its potential energy. The mass then falls at a speed of 8 m/s in 4 sec, find its KE and momentum p. What is the Force and impulse the mass transfers to the ground? 27.) For problem 26 above, find the work done by gravity if the mass falls a distance 2 meters. If the mass falls for 11 seconds, what is the energy expended...
A mass of 5kg is on top of a building of height 10m. Calculate its potential...
A mass of 5kg is on top of a building of height 10m. Calculate its potential energy. The mass then falls at a speed of 8 m/s in 4 sec, find its KE and momentum p. What is the Force and impulse the mass transfers to the ground?
A 5kg block starts at a height of 10m above the ground and slides 20m down...
A 5kg block starts at a height of 10m above the ground and slides 20m down a rough surfaced incline. The work done by the frictional force in sliding down the incline is 240 J. It reaches the bottom of the incline and then enters a frictionless vertical loop of radius 2m. The speed of the block at the bottom of the hoop is 10.0m/s. The block performs one revolution and exits the loop.o sinu or mohe imImtombnes biduo nsotinpie...
17. A projectile of mass m is fired straight up from an initial height ho with...
17. A projectile of mass m is fired straight up from an initial height ho with an initial speod vo. The projectile rises to a maximum height of hesa and falls straight back down to the ground at zero height. What is the total work done by the force of gravity during this trajectory? Vo ho m. If a hole appears in 18. The water level in a city storagetower is at a height of 40 the tower at a...
A ball has a mass of 0.5kg. Dropped from a cliff top, the ball strikes the...
A ball has a mass of 0.5kg. Dropped from a cliff top, the ball strikes the sea below at a velocity of 10m/sec. a. What is the kinetic energy of the ball as it is about to strike the sea? b. What was its potential energy before it was dropped? c. From what height was the ball dropped? d. A stone of mass 1 kg also strkes the sea at 10m/sec. Repeat stages a, b and c above to find...
1-4 using Work-Energy Theorem/KE and PE thank you! not 1. An object of mass 0.5kg is...
1-4
using Work-Energy Theorem/KE and PE
thank you!
not 1. An object of mass 0.5kg is projected from ground at 40m/s. Find the work done by gravity on the object, when it is at (a) 10m above the ground -49 Joules (b) 15m above the ground.- 73.5 Joules (c) Find the potential energy of the object in (a) and (b) relative to the ground. PE-mgh 49 J/73.55 2. A block of is sliding down a slope as shown in the...
An object, m = 2 kg, is dropped from the top of a building whose height...
An object, m = 2 kg, is dropped from the top of a building whose height is h=20 m above the ground. Assume that g=9.8m/s2 What is its gravitational potential energy with respect to the ground?
Explore A baseball is thrown from the top of a tall building with an initial velocity...
Explore A baseball is thrown from the top of a tall building with an initial velocity of 10 m/s from a height of h= 11.5 m above the ground. Find its speed when it reaches the ground (a) if its launch angle is 37°, and (b) if it is launched horizontally. Conceptualize As the baseball moves upward and to the right, the force of gravity accelerates it downward. The vertical component of its velocity decreases in magnitude until the baseball...
A ball of soft clay with mass 1 kg falls from a height of 10 m...
A ball of soft clay with mass 1 kg falls from a height of 10 m starting at rest. When the clay hits the ground it flattens and comes to a stop. Which of the following is true? Gravity does work on the ball equal to 980 J, and all this energy is dissipated during the deformation of the ball on impact. Gravity does work on the ball equal to 98 J, and all of this energy is dissipated during...
26.) A mass of 5kg is on top of a building of height 10m. Calculate its potential energy. The mass then falls at a speed of 8 m/s in 4 sec, find its KE and momentum p. What is the Force and impulse the mass transfers to the ground? 27.) For problem 26 above, find the work done by gravity if the mass falls a distance 2 meters. If the mass falls for 11 seconds, what is the energy expended...
A 5kg block starts at a height of 10m above the ground and slides 20m down a rough surfaced incline. The work done by the frictional force in sliding down the incline is 240 J. It reaches the bottom of the incline and then enters a frictionless vertical loop of radius 2m. The speed of the block at the bottom of the hoop is 10.0m/s. The block performs one revolution and exits the loop.o sinu or mohe imImtombnes biduo nsotinpie...
17. A projectile of mass m is fired straight up from an initial height ho with an initial speod vo. The projectile rises to a maximum height of hesa and falls straight back down to the ground at zero height. What is the total work done by the force of gravity during this trajectory? Vo ho m. If a hole appears in 18. The water level in a city storagetower is at a height of 40 the tower at a...
1-4
using Work-Energy Theorem/KE and PE
thank you!
not 1. An object of mass 0.5kg is projected from ground at 40m/s. Find the work done by gravity on the object, when it is at (a) 10m above the ground -49 Joules (b) 15m above the ground.- 73.5 Joules (c) Find the potential energy of the object in (a) and (b) relative to the ground. PE-mgh 49 J/73.55 2. A block of is sliding down a slope as shown in the...
A ball of soft clay with mass 1 kg falls from a height of 10 m starting at rest. When the clay hits the ground it flattens and comes to a stop. Which of the following is true? Gravity does work on the ball equal to 980 J, and all this energy is dissipated during the deformation of the ball on impact. Gravity does work on the ball equal to 98 J, and all of this energy is dissipated during...
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