Julius competes in the hammer throw event. The hammer has a mass of 7.26 kg and is 1.215 m long.
What is the centripetal force on the hammer when it has a
tangential speed of 31.95 m/s? The answer is rounded off
to the nearest whole number
0 190 N
O 840 N
0 1,400 N
O 6,100 N

Ablock of mass m slides on a horizontal frictionless table with an initial speed v0 . it then compresses a spring of force constant k and is brought to rest. the acceleration of gravity is 9.8 m/s2. how much is the spring compressed x from its natural length? 1) x = v0*sqrt(k/(mg)) 2) x=v0*sqrt(m/k) 3) x=v0*((mk)/g) 4) x=v0*sqrt(k/m) 5) x=v0*(m/kg) 6) x=v0*sqrt((mg)/k) 7) x=(v0)^2/(2g) 8) x=v0*(k/(mg)) 9) x=(v0)^2/(2m) 10) x=v0*((mg)/k)