Find v1,f (The final speed of object 1) given the following information m1 = 5.4 kg
m2 = 9.3 kg
v1,i = 1.9 m/s
v2,i = 3.6 m/s
v2,f = 4.6 m/s

When considering gravity acceleration and the force of acceleration, what must be true? a. the direction of acceleration must be perpendicular to the direction of the force. b. the direction of the force and the direction of acceleration must be the same as each other. c. the direction of the force and the direction of acceleration must be opposite of each other. d. the mass of the body must be the same as the acceleration of the body.

Ameter stick is pivoted at the 0.50-m line. a 3.0-kg object is hung from the 0.15-m line. where should a 5.0-kg object be hung to achieve equilibrium (the meter stick oriented horizontal and motionless)?

Ineed the answer to question 1 , i’m desperate