Intro to Impulse Video Lessons

Concept

# Problem: A block with mass 5.0 kg is initially at rest on a horizontal frictionless surface. Then a constant horizontal force F is applied to the block. After the force has been applied for 4.0 seconds the speed of the block is 12.0 m/s. What is the magnitude of the force? A) 15.0 N B) 3.0 N C) 2.5 N D) 30.0 N E) None of the above answers

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###### Problem Details

A block with mass 5.0 kg is initially at rest on a horizontal frictionless surface. Then a constant horizontal force F is applied to the block. After the force has been applied for 4.0 seconds the speed of the block is 12.0 m/s. What is the magnitude of the force?

A) 15.0 N

B) 3.0 N

C) 2.5 N

D) 30.0 N

E) None of the above answers

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Intro to Impulse concept. You can view video lessons to learn Intro to Impulse. Or if you need more Intro to Impulse practice, you can also practice Intro to Impulse practice problems.

How long does this problem take to solve?

Our expert Physics tutor, Jeffery took 1 minute and 46 seconds to solve this problem. You can follow their steps in the video explanation above.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Lyuksyutov's class at TAMU.