Friday

December 19, 2014

December 19, 2014

Posted by **zais** on Friday, July 27, 2012 at 4:49am.

what will be the impact of the force on the brick if it lands on.

a) concrete

b) soft surface

- physics -
**Damon**, Friday, July 27, 2012 at 5:31amI do not think you copied this question carefully. I can not do it without knowing if the 45 degrees is up or down and the magnitude of that velocity.

As the second half of the question makes clear, it is impossible to compute "impact force" without knowing the springiness of the ground. Force = mass times acceleration. If it hits a hard surface, the force is large because the change in velocity happens fast. If it hits a spring, the force is less because the change in velocity is divided by a larger time to get average acceleration.

**Answer this Question**

**Related Questions**

Engineering science - A brick with a mass of 6kg is dropped vertically from a ...

Physics - A ball is thrown toward a cliff of height h with a speed of 27m/s and ...

physics - Three identical balls are thrown from a cliff of height, h, above a ...

physics - Three identical balls are thrown from a cliff of height, h, above a ...

Physics - A projectile is fired up into the air at a speed of 164 m/s at an ...

AP physics - A brick is thrown upward from the top of a building at an angle of ...

Physics - A 9 kg lead brick falls from a height of 1.8 m. a) Find the momentum ...

Physics - A brick is thrown upward from the top of a building at an angle of 25...

physics - A brick is thrown upward from the top of a building at an angle of 25...

physics - A brick is thrown upward from the top of a building at an angle of 40...