Smashing Dynamics
Level 4, 2025-11-25
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 dog starts at a speed of 2 km/min and increases its speed to 6 km/min in 6 min. What is its acceleration?
[1]
A train speeds up to 3 m/day in 6 day. What is its acceleration?
[1]
A person starts at a speed of 2 in/sec and increases its speed to 19 in/sec in 2 sec. What is its acceleration?
[1]
A bike traveling at 14 m/day decelerates at 5 m/day/day. How long will it take to stop?
[1]
A kid is dropped out of a plane and falls unitil it hits the ground. If its speed is 189 m/sec when it hits the ground, how long did the fall take?
[1]
A ball travels at 5 feet/hour while a train travels at 13 feet/hour towards it. If they are 5 feet apart, how long will it take for them to meet?
[2]
A scooter is dropped out of a plane and falls unitil it hits the ground. If its speed is 147 m/sec when it hits the ground, how long did the fall take?
[1]
What is 4 secs in hrs?
[1]
A boat traveling at 7 mi/sec stops in 8 sec. What is its acceleration?
[1]
A person traveling at 2 ft/day stops in 6 day. What is its acceleration?
[1]
A cheetah traveling at 11 ft/min decelerates at 4 ft/min/min. How long will it take to stop?
[1]
What is 3min in sec?
[1]
A person traveling at 6 km/day stops in 6 day. What is its acceleration?
[1]
Planet X has gravity that is three times the gravity on Earth. If a tiger is dropped for 6 sec on Planet X, how fast will it be going?
[1]
Two rockets blast off with upwards accelerations (not including gravity) of 11 m/sec/sec and 15 m/sec/sec. How much faster will the fastest rocket be going after 2 sec?
[2]
A ball starts at a speed of 8 in/hr and increases its speed to 17 in/hr in 4 hr. What is its acceleration?
[1]
Two rockets blast off with upwards accelerations (not including gravity) of 19 m/sec/sec and 18 m/sec/sec. How much faster will the fastest rocket be going after 3 sec?
[2]