Smashing Dynamics
Level 4, 2026-06-10
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 rabbit travels at 5 feet/hour while a car is 2 feet behind traveling at 5 feet/hour. How long will the car take to catch up to the rabbit?
[2]
A cheetah accelerates at 5 ft/hr/hr. How long will it take to get to a speed of 15 ft/hr?
[1]
What is 6hr in min?
[1]
A bus travels at 3 inches/second around a square with a side of 7 inches. How long will the bus take to get around the square?
[2]
Planet X has gravity that is one fifth the gravity on Earth. If a person is dropped for 5 sec on Planet X, how fast will it be going?
[1]
A cube is dropped out of a plane and falls for 8 sec until it hits the ground. How fast will it be going when it hits the ground?
[1]
A kid is dropped out of a plane and falls for 8 sec until it hits water. The water creates a deceleration of 6 m/sec/sec and it takes another 11 sec to sink to the bottom. How fast will it be going when it hits the bottom?
[2]
Two rockets blast off with upwards accelerations (not including gravity) of 20 m/sec/sec and 19 m/sec/sec. How much faster will the fastest rocket be going after 6 sec?
[2]
A bus is dropped out of a plane and falls unitil it hits the ground. If its speed is 197 m/sec when it hits the ground, how long did the fall take?
[1]
A bike speeds up to 4 mi/hr in 9 hr. What is its acceleration?
[1]
A boat traveling at 9 ft/day stops in 2 day. What is its acceleration?
[1]
A person travels at 6 meters/day around a rectangle with one side of 3 meters and another side of 7 meters. How long will the person take to get around the rectangle?
[2]
A car is dropped out of a plane and falls unitil it hits the ground. If its speed is 89 m/sec when it hits the ground, how long did the fall take?
[1]
A cheetah starts at a speed of 8 in/sec and increases its speed to 9 in/sec in 8 sec. What is its acceleration?
[1]
A dog travels at 3 centimeters per day. What is its speed?
[1]