Physics Question? Need Help!

Posted on 2014-12-15 08:23:00 in Physics by SYLVIA

Q 1.) An object attached to a spring is pulled across a frictionless surface. If the spring constant is 45 N/m and the
spring is stretched by 0.88 m when the object is accelerating at 1.4 m/s2, what is the mass of the object?
A) 28 kg B) 36 kg C) 24 kg D) 31 kg

Q 2.) A traveler pulls on a suitcase strap at an angle 36° above the horizontal. If 908 J of work are done by the strap
while moving the suitcase a horizontal distance of 15 m, what is the tension in the strap?
A) 92 N B) 85 N C) 75 N D) 61 N

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