FORENSICS · ALLEY ASSEMBLY

Each case's staging composited over its accepted plates from the delivered prop and shadow layers, at phone width (390 pt). The gold lines, marks and the reconstruction are the overlay the app draws, generated by check_forensics.py --assemble.

fx-a1-001

The Open Window

PASS PLAUSIBLE

Scuff marks on level ground are 2.0 meters from a vertical wall. A ladder footed at the marks rests on a windowsill 3.6 meters above the ground. To climb through the window, at least 0.9 meters of the ladder must extend past the sill. What is the minimum length of the ladder, to the nearest tenth of a meter?

Answer 5.1 m · geometry 5.0683

fx-a1-001 scene_wide
E1
scene_wide · scuffs_scene_wide, dumpster_01_scene_wide, ladder_ext_5.4_scene_wide
fx-a1-001 plan
s 2.0L 5.4E1
plan · scuffs_plan, dumpster_01_plan, ladder_ext_5.4_plan
fx-a1-002

The Open Window

PASS RULED OUT

Scuff marks on level ground are 2.0 meters from a vertical wall. A ladder footed at the marks rests on a windowsill 3.6 meters above the ground. To climb through the window, at least 0.9 meters of the ladder must extend past the sill. What is the minimum length of the ladder, to the nearest tenth of a meter?

Answer 5.1 m · geometry 5.0683

fx-a1-002 scene_wide
E1
scene_wide · scuffs_scene_wide, dumpster_01_scene_wide, ladder_ext_4.8_scene_wide
fx-a1-002 plan
s 2.0L 4.8E1
plan · scuffs_plan, dumpster_01_plan, ladder_ext_4.8_plan
fx-a2-001

The Shortcut

PASS PLAUSIBLE

From a doorway, a person runs a route in two straight legs. The first leg ends at a point 2.4 meters farther along the wall and 1.8 meters out from it. The second leg runs 5.6 meters parallel to the wall. The person covers the whole route in 2.5 seconds at a constant speed. What is that speed, in meters per second, to the nearest tenth?

Answer 3.4 m/s · geometry 3.4400

fx-a2-001 plan
a 2.4b 1.8c 5.6F1M
plan · footprints_plan, crate_01_plan
fx-a2-001 scene_wide
F1M
scene_wide · footprints_scene_wide, crate_01_scene_wide
fx-a2-002

The Shortcut

PASS RULED OUT

From a doorway, a person runs a route in two straight legs. The first leg ends at a point 2.4 meters farther along the wall and 1.8 meters out from it. The second leg runs 5.6 meters parallel to the wall. The person covers the whole route in 2.5 seconds at a constant speed. What is that speed, in meters per second, to the nearest tenth?

Answer 3.4 m/s · geometry 3.4400

fx-a2-002 plan
a 2.4b 1.8c 5.6F1M
plan · footprints_plan, crate_01_plan
fx-a2-002 scene_wide
F1M
scene_wide · footprints_scene_wide, crate_01_scene_wide
fx-a3-001

The Missing Shipment

PASS PLAUSIBLE

A rectangular doorway is 0.9 meter wide and 2.1 meters tall. What is the length of the doorway's diagonal, to the nearest hundredth of a meter?

Answer 2.28 m · geometry 2.2847

fx-a3-001 scene_door
scene_door · crate_flat_2.5x2.2_scene_door
fx-a3-001 plan
cw 2.5
plan · crate_flat_2.5x2.2_plan
fx-a3-002

The Missing Shipment

PASS RULED OUT

A rectangular doorway is 0.9 meter wide and 2.1 meters tall. What is the length of the doorway's diagonal, to the nearest hundredth of a meter?

Answer 2.28 m · geometry 2.2847

fx-a3-002 scene_door
scene_door · crate_flat_2.5x2.4_scene_door
fx-a3-002 plan
cw 2.5
plan · crate_flat_2.5x2.4_plan