Page 204 Practice Problem 7.11: If the mass of the elevator (with four what should the...
a block with a mass of 2.5 kg starts from rest at the top of the apparatus shown below. it then slides without friction down the incline, and collides with a spring attached to a wall. The spring has a spring constant of K=120N/m. Using the principle of energy conservation, a. find the initial gravitational potential energy of the block at point A b. find the kinetic energy of the block at point B c. what is the velocity of...
A block with mass m = 1.86 kg is placed against a spring on a frictionless incline with angle θ = 33.9° (see the figure). (The block is not attached to the spring.) The spring, with spring constant k = 25 N/cm, is compressed 28.1 cm and then released. (a) What is the elastic potential energy of the compressed spring? (b) What is the change in the gravitational potential energy of the block-Earth system as the block moves from the...
M 7 A mass M = 1.2 kg is released from rest. From the initial height of 75 cm above the ground, the mass drops from an free spring (neither compressed, nor extended) of constant k = 590 N/m The maximum compression of the spring, due to the impact of the dropping mass is sh = 160 mm. Analyse the system with respect to the balance of energy, and the apply the conservation of energy, considering the ground level as...
A child with a weight of 200 N swings on a playground swing attached to 2.00-m-long chains. What is the gravitational potential energy of the child- Earth system relative to the child's lowest position at the following times? (a) when the chains are horizontal j (b) when the chains make an angle of 30.0° with respect to the vertical J (c) when the child is at his lowest position A pendulum bob with a mass of 0.370 kg is attached...
M A mass M-1.2 kg is released from rest. From the initial height of 75 cm above the ground, the mass drops from an free spring (neither compressed, nor extended) of constant k = 590 N/m. The maximum compression of the spring, due to the impact of the dropping mass is sh = 160 mm. Analyse the system with respect to the balance of energy, and the apply the conservation of energy, considering the ground level as reference of the...
te M of estion M A mass M = 1.2 kg is released from rest. From the initial height of 90 cm above the ground, the mass drops from an free spring (neither compressed, nor extended) of constant k = 580 N/m. The maximum compression of the spring, due to the impact of the dropping mass is dh = 180 mm. Analyse the system with respect to the balance of energy, and the apply the conservation of energy, considering the...
A block with mass m = 1.47 kg is placed against a spring on a frictionless incline with angle 0 = 37.10 (see the figure). (The block is not attached to the spring.) The spring, with spring constant k = 19 N/cm, is compressed 22.5 cm and then released. (a) What is the elastic potential energy of the compressed spring? (b) What is the change in the gravitational potential energy of the block-Earth system as the block moves from the...
s odott gi Page 204 Practice Problem 7.10: 53 - O-TOUS Find the skateboard's speed at the bottom of the pipe if he is given a push at the top edge, so that he has an initial downward speed of 2.00 m/s. Answer: 7.93 m/s. EXAMPLE 7.10 Calculating speed along a vertical circle Here we will tackle a circular-motion problem using conservation of energy. Because the acceleration in this problem is not constant, we cannot approach it with the tools...
Answers to problem 3 and 4 please 3. A mass of 0.4000 kg is raised by a vertical distance of 0.4500 m in the Earth's gravitational field. a. What is the change in its gravitational potential energy? Conservation of spring and gravitational potential energy b. This same mass is lowered by a vertical distance of 0.3500 m in the Earth's gravitational field What is the change in its gravitational potential energy? 4. A spring of spring constant k 8.750 N/m...
PLEASE ANSWER STEP BY STEP A thrill-seeking cat with mass 4.00 kg is attached by a harness to an ideal spring of negligible mass and oscillates vertically in SHM. The amplitude is 0.050 m, and at the highest point of the motion the spring has its natural unstretched length. Calculate the elastic potential energy of the spring (take it to be zero for the unstretched spring), the kinetic energy of the cat, the gravitational potential energy of the system relative...