Author Question: A block is dragged without acceleration in a straight-line path across a level surface by a force of ... (Read 74 times)

sc00by25 · **on:** Jul 29, 2018

A block is dragged without acceleration in a straight-line path across a level surface by a force of 6 N. What is the force of friction between the block and the surface?

A) less than 6 N
B) 6 N
C) more than 6 N
D) need more information

Question 2

A jumbo jet has a mass of 100,000 kg. The thrust for each of its four engines is 50,000 N. What is the jet's acceleration when taking off?

A) 0.25 m/s2
B) 1 m/s2
C) 2 m/s2
D) 4 m/s2
E) none of the above