You have a light spring which obeys Hooke's law. This spring stretches 2.70 cm vertically when a 2.50 kg object is suspended from it. Determine the following:  a) the force constant of the spring (in N/m) b) the distance (in cm) the spring stretches if you replace the 2.50 kg object with a 1.25 kg object c) the amount of work (in J) an external agent must do to stretch the spring 7.60 cm from its unstretched position

A force of magnitude 720.0 N stretches a certain spring by 0.150 m from its equilibrium position. a)What is the force constant of this spring? b)How much elastic potential energy is stored in the spring when it is stretched 0.390 m from its equilibrium position. c)How much elastic potential energy is stored in the spring when it is compressed by 0.390 m from its equilibrium position. d)How much work was done in stretching the spring by the original 0.150 m?

When a 2.90-kg object is hung vertically on a certain light spring described by Hooke's law, the spring stretches 2.92 cm. (a) What is the force constant of the spring? N/m (b) If the 2.90-kg object is removed, how far will the spring stretch if a 1.45-kg block is hung on it? cm (c) How much work must an external agent do to stretch the same spring 7.00 cm from its unstretched position?

When a 2.00-kg object is hung vertically on a certain light spring described by Hooke's law, the spring stretches 2.68 cm. (a) What is the force constant of the spring? N/m (b) If the 2.00-kg object is removed, how far will the spring stretch if a 1.00-kg block is hung on it? cm (c) How much work must an external agent do to stretch the same spring 6.50 cm from its unstretched position? J

A spring lies on a horizontal table, and the left end of the spring is attached to a wall. The other end is connected to a box. The box is pulled to the right, stretching the spring. Static friction exists between the box and the table, so when the spring is stretched only by a small amount and the box is released, the box does not move. The mass of the box is 0.75 kg, and the spring has a spring constant of 77 N/m. The coefficient of static friction between the box and the table on which it rests is us = 0.59. How far can the spring be stretched from its unstrained position without the box moving when it is released?

When a 2.30-kg object is hung vertically on a certain light spring described by Hooke's law, the spring stretches 2.99 cm. (a) What is the force constant of the spring? N/m (b) If the 2.30-kg object is removed, how far will the spring stretch if a 1.15-kg block is hung on it? cm (c) How much work must an external agent do to stretch the same spring 9.30 cm from its unstretched position? J Need Help2

A 25-kg child uses a pogo stick to bounce up and down. The spring constant, k, of the toy equals 8750 N/m. a) By how much would the spring be compressed by the child if she simply balanced herself vertically on the pedals of the stick? b) How much energy is stored in the spring under this circumstance?

A 500-g block is released from rest and slides down a frictionless track that begins 2.50 m above the horizontal, as shown in the figure below. At the bottom of the track, where the surface is horizontal, the block strikes and sticks to a light spring with a spring constant of 10.0 N/m. Find the maximum distance the spring is compressed. m

You have a light spring which obeys Hooke's law. This spring stretches 3.04 cm vertically when a 2.90 kg object is suspended from it. Determine the following. (a) the force constant of the spring (in N/m) N/m (b) the distance (in cm) the spring stretches if you replace the 2.90 kg object with a 1.45 kg object cm (c) the amount of work (in J) an external agent must do to stretch the spring 8.10 cm from its unstretched position J

answer part b