Smashing Dynamics
Level 4, 2026-06-03
All answers must have a value and units
Metric Distance
cmcentimeterbasic unit of distance
mmeter100 centimeters
kmkilometer1000 meters
Imperial Distance
ininch2.5 centimeters
ftfoot12 inches
mimile5280 feet, 1.6 kilometers
Time
secsecondbasic unit of time
minminute60 seconds
hrhour60 minutes
dayday24 hours
Other
ggravity-10 m/sec/sec
A train is dropped into the water and falls for 6 sec until it hits the bottom. The water creates a deceleration of 8 m/sec/sec. How fast will it be going when it hits the bottom?
[1]
Two rockets blast off with upwards accelerations (not including gravity) of 11 m/sec/sec and 8 m/sec/sec. How much faster will the fastest rocket be going after 4 sec?
[2]
A boat starts at a speed of 3 mi/min and increases its speed to 11 mi/min in 5 min. What is its acceleration?
[1]
A car starts at a speed of 4 ft/hr and increases its speed to 17 ft/hr in 6 hr. What is its acceleration?
[1]
A scooter travels at 6 centimeters/second for 2 seconds then at 6 centimeters/second for 5 seconds. How far did it go?
[2]
A rabbit accelerates at 9 ft/hr/hr. How long will it take to get to a speed of 76 ft/hr?
[1]
A cube speeds up to 2 in/min in 7 min. What is its acceleration?
[1]
A cat traveling at 3 cm/day stops in 5 day. What is its acceleration?
[1]
What is 3 kilometers in centimeters?
[1]
A scooter traveling at 5 ft/hr stops in 3 hr. What is its acceleration?
[1]
A boat travels 22 kilometers in 2 seconds. At what speed did the boat travel?
[1]
A rabbit traveling at 24 mi/day decelerates at 8 mi/day/day. How long will it take to stop?
[1]
A kid is dropped out of a plane and falls for 3 sec until it hits the ground. How fast will it be going when it hits the ground?
[1]
What is 3in in km?
[1]
A kid is dropped into the water and falls for 3 sec until it hits the bottom. The water creates a deceleration of 8 m/sec/sec. How fast will it be going when it hits the bottom?
[1]
Two rockets blast off with upwards accelerations (not including gravity) of 15 m/sec/sec and 9 m/sec/sec. How much faster will the fastest rocket be going after 4 sec?
[2]
A cheetah accelerates at 6 in/hr/hr. How long will it take to get to a speed of 4 in/hr?
[1]