A person slaps her leg with her hand, which results in her hand coming to rest in a time interval of 2.25 ms from an initial speed of 3.75 m/s . What is the magnitude of the average contact force exerted on the leg, assuming the total mass of the hand and the forearm to be 1.65 kg

v 154.9= 0.9 length length s little over 154.9cm

i think the answer is a, hope this : )

the only real purpose of sputnik 1 was to beat the us into space. we were getting close to launching a useful satellite, explorer 1 - which launched on january 31, 1958. the ussr had to beat that, so they launched sputnik 1 on october 4, 19