A mass on a spring rests on a horizontal frictionless surface. You displace it 8.00 cm 2) from equilibrium and release it from rest. Where does it reach its maximum speed? If the maximum speed is 1.25 m/s, where is the mass when it is moving at 0.75 m/s?

A stationary but movable 400 kg cannon is fired, and the 10 kg cannonball moves off to the right with a velocity of 20.0 m/s . What is the cannon's speed in m/s (neglecting friction or any restraints )?

Block A in (Figure 1) has mass 0.800 kg, and block B has mass 2.85 kg. The blocks are forced together, compressing a spring S between them; then the system is released from rest on a level, frictionless surface. The spring, which has negligible mass, is not fastened to either block and drops to the surface after it has expanded. Block B acquires a speed of 1.30 m/s. Figure S ma 1 of 1 What is the final speed of block A? Express your answer in meters per second. VA.f= 5.16 Π ΑΣΦ Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining Part B Two lying blocks connected by a horizontal spring. U = How much potential energy was stored in the compressed spring? Express your answer in joules. ? ΑΣΦ m/s

Hoping for complete solutions since I’m having a hard time with this. Pls skip if unsure or not willing to answer the subitems (these are all connected for one item). Thanks in advanced! A block with mass m = 3. 00 [kg] slides head-on to a spring with spring constant k = 420. [N/m]. When the block stops, the spring has been  compressed by 5.00 [dm]. The coefficient of kinetic friction between the block and floor is 0.300. While the block is in contact with the spring and being brought to rest, what is the work done on the block by: A. the spring force and B. friction? C.  What is the block’s speed just as it reaches the spring?