Smashing Dynamics
Level 4, 2026-01-29
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 person is dropped into the water and falls for 8 sec until it hits the bottom. The water creates a deceleration of 7 m/sec/sec. How fast will it be going when it hits the bottom?
[1]
A cube is dropped out of a plane and falls unitil it hits the ground. If its speed is 70 m/sec when it hits the ground, how long did the fall take?
[1]
A cheetah travels at 11 miles/day while a rabbit travels at 6 miles/day. If the race track is 44 miles long, what distance will the cheetah win by?
[2]
A ball is dropped out of a plane and falls for 7 sec until it hits the ground. How fast will it be going when it hits the ground?
[1]
A rabbit is dropped out of a plane and falls for 7 min until it hits the ground. How fast will it be going when it hits the ground?
[1]
Two rockets blast off with upwards accelerations (not including gravity) of 13 m/sec/sec and 16 m/sec/sec. How much faster will the fastest rocket be going after 9 sec?
[2]
Planet X has gravity that is one sixth the gravity on Earth. If a dog is dropped for 7 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 8 m/sec/sec. How much faster will the fastest rocket be going after 2 sec?
[2]
A dog travels at 4 inches/second while a car travels at 13 inches/second towards it. If they are 7 inches apart, how long will it take for them to meet?
[2]
Two rockets blast off with upwards accelerations (not including gravity) of 18 m/sec/sec and 17 m/sec/sec. How much faster will the fastest rocket be going after 4 sec?
[2]
A car accelerates at 9 in/sec/sec. How long will it take to get to a speed of 5 in/sec?
[1]
Two rockets blast off with upwards accelerations (not including gravity) of 17 m/sec/sec and 13 m/sec/sec. How much faster will the fastest rocket be going after 10 sec?
[2]
Planet X has gravity that is one fifth the gravity on Earth. If a bike is dropped for 7 sec on Planet X, how fast will it be going?
[1]
What is 3 days in hours?
[1]