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

if a brick of mass 7 kg is thrown from a height of 24 ft at an angle of 45 degrees, what impact force will it land with on the ground?

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 5:31am
I 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

- Physics! - A 0.3 kg brick is dropped form a height of 8 meters. It hits the ...
- physics - Suppose the stone is thrown at an angle of 30.0 degrees below the ...
- Engineering science - A brick with a mass of 6kg is dropped vertically from a ...
- 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 - Well it's an kinematics project and it involves alot of questions. So ...
- Physics - A 9 kg lead brick falls from a height of 1.8 m. a) Find the momentum ...
- Physics - A brick is thrown vertically upward with an initial speed of 3.00 m/s ...
- Physics - A rock is thrown vertically upward with a speed of 11.0 from the roof ...
- physics - A ball thrown at an angle of 40 degrees with respect to the ground ...

More Related Questions