How much force is needed to lift a 300 kg block up at 2 m/s^2? be careful there are two forces acting on the block.

3543N OR 3540 N IN 3 SIGNIFICANT NUMBERS

Explanation:

Let F be the force which lifts body upward

in downward direction weight of the body acts .

weight = mass ×acceleration due to gravity

weight, W = 300×9.81=2943N

Now net force acting on body is F-W and according to second law of motion

F-W = m a where F is force W is weight m is mass and a is acceleration

F-2943=300×2

F = 600+2943

F = 3543N or 3540 in 3 significant figures

with 5 seconds, no, but over time if the police car stays at 65m/s ad the speeding car stays at 60, then obviously yes, but the answer to your question would be, no.

hope this : )