Truck a has a mass of 5000 kg and a velocity of +5m/s. explain why we say truck b has a velocity of -5m/s.

An input force of 7 n is applied to a machine with a mechanical advantage of 1.75. what is the maximum the machine could lift? 12.25 n7n7.25 n26.2 n

Which is the best for showing percentages of different types of cars sold(gas hybrid , electric , other ) in the united states ?

Part a constants huck finn walks at a speed of 0.60 m/s across his raft (that is, he walks perpendicular to the raft's motion what is huck's velocity (speed and direction) relative to the river bank? express your answer to three significant figures and include the appropriate units. relative to the shore)