PHY250L LAB BUNDLE 2026 FULL WORKSHEET SET WITH CORRECT ANSWERS GRADED A+

PHY250L LAB BUNDLE 2026 FULL
WORKSHEET SET WITH CORRECT
ANSWERS GRADED A+

⩥ Calculate the % change from before to after a collision if Pbefore =
0.172 and Pafter = 0.155. Answer: -9.88
ans= (0.166-0.180)*100/0.180 = -7.78 %
absolute value? no


⩥ Calculate the spring constant, k, if the spring is compressed by 1.00
cm and the total stored potential energy is 0.00842 J.


Your answer should be in N/m or kg/s2 Answer: 168
E= 1/2 K X2


⩥ A light ball collides head-on with a stationary heavy target elastically.
The ball: Answer: bounces backwards


⩥ A heavy ball collides head-on with a stationary light target elastically.
The ball: Answer: continues forward

, ⩥ A 11600 kg railroad car is coasting on a level, frictionless track at a
speed of 16.0 m/s when a 5420 kg load is dropped onto it.


If the load is initially at rest, find the new speed of the car and the %
change of the kinetic energy. Answer: 10.9 m/s
Change in KE: ___%
m1*v1 + m2*v2 = (m1+m2)*V


12100*19 + (4790*0) = (12100+4790)*V




V = 13.61 m/s <---------answer




KE1 = 0.5*m1*v1^2 = 0.5*12100*19*19 = 2184050 J


KE2 = 0.5*(m1+m2)*V^2 = 0.5*(12100+4790)*13.61*13.61




KE2 = 1564285.0845 J


% change = K2-K1/K1 = (1564285.0845 - 2184050)*100/2184050 =
28.3 %