Recent content by heyrefusuck

Connected by a string to a scale is an object and when suspended in air, the scale reads 200 N. The scale reads 150 N when the object is suspended in water (d = 1000 kg/m^3). What does the scale read (in N) when the object is suspended in oil having a density of 800 kg/m^3? I determined that...

For the following: 2kg. hanging mass and 8 kg. tabled mass are connected by a massless string passing over a frictionless pulley with a mass of 6kg. The 2kg. mass moves vertically and the 8kg. mass moves on a horizontal frictionless surface. The moment of I of the pulley is 1/2MR^2. The...

Well, in response to #2 I would use the following formula: centripetal accel. = v^2/r but what would be the unit? rad/sec/m? Accel. unit needs a distance unit and two units of time correct? So would it be 2 rad/s squared divided by the radius (10)? #3 I would use tangential accel. =...

A child riding a merry-go-round is sitting on a horse onto a stationary pole 10m from the center of the merry-go-round. The ride starts from rest and with constant angular acceleration obtains an angular velocity of 2 rad/s in 10 seconds. It then continues at 2 rad/s for 15 seconds and then...