A 7.5-kg magnetic target is suspended on a string. A 2.5-kg magnetic dart, shot horizontally, strikes it head-on. The dart and the target together, acting like a pendulum, swing up 1.25 m above the initial level before instantaneously coming to rest. Find the initial velocity of the dart before striking on the target. Use gravitational constant as g= 10 m/s?. Show your solution.​

Rroshok    1   27.11.2020 15:53    1