In preparing to shoot an arrow, an archer pulls a bow string back 0.40m by exerting a force of 230N. What is the spring constant of the bow?
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Q: To test the resiliency of its bumper during low-speed collisions, a 4 490-kg automobile is driven…
A: SOlution: as given that m =4490 kg k=6x106 N/m x=3.36 cm=0.0336 m
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- 2. A Nerf gun is cocked by compressing an ideal spring with a constant of 56N/m a distance of 0.07m. How much tension is in the spring? What is the spring's elastic potential energy? How much work was done in cocking the Nerf gun? How fast will the 0.040kg dart leave the barrel?An unstretched spring hanging to the ceiling is connected to an object. The object is released and drops a distance of 11.8m before it stops, and the mass of the object is 0.6kg. What is the spring constant? The mass of the string is irrelevant.An automobile having a mass of 1000 kg is driven into a brick wall in a safety test. The bumper behaves like a spring with constant 4.75 106 N/m and is compressed 2.70 cm as the car is brought to rest. What was the speed of the car before impact, assuming no energy is lost in the collision with the wall? m/s
- A spring has a spring constant of k = 20 N/m and a rest lengthof x0 = 0.1 m. One end of the spring is attached to a m = 1.0 kgblock. The other end is attached 1m above the ground.The block is pulled down to a height of 0.2 m above the groundand let go from rest (A). It is observed to be moving up when itreaches a height of 0.5 m above the ground (B. Calculate: Potential Energy of Gravity PEg when the block is 0.2m above the ground and 0.5m above the ground. B) Calculate Potential energy of the spring when the block is 0.2m above the ground and 0.5m above the ground. C)Calculate Kinetic energy when the block is 0.2m above the ground and 0.5m above the ground. D) Calculate the total energy in the system when the block is 0.2m above the ground and 0.5m above the ground.AsapA mass of 1.2kg is attached to a spring with a constant 12N/m. it is then displaced to a maximum point of 2m. How much time does it take for the block to travel to the point x=1.5m? answer in seconds
- A toy bow is used to fire an arrow directly upwards. The spring constant of the bowstring is 17 N/m, and the arrow has mass 0.013 kg. If the bow is drawn 0.15 m before firing, calculate the speed of the arrow when it leaves the bow.An archer pulls her bowstring back 0.355 m by exerting a force that increases uniformly from zero to 255 N. (a) What is the equivalent spring constant of the bow? N/m (b) How much work is done in pulling the bow? Need Help? Read ItAn initially 'un-compressed' spring (x1=0) is observed to compress 0.4 m before stopping and reversing the 26 m/s horizontal velocity of a 100 kg mass. Determine the spring constant in N/mm.