Smashing Dynamics
Level 4, 2026-01-21
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 ball is dropped out of a plane and falls unitil it hits the ground. If its speed is 193 m/sec when it hits the ground, how long did the fall take?
[1]
A tiger is dropped into the water and falls for 7 sec until it hits the bottom. The water creates a deceleration of 6 m/sec/sec. How fast will it be going when it hits the bottom?
[1]
A rocket blasts off with an upwards acceleration (not including gravity) of 17 m/sec/sec. How fast will it be going after 2 sec?
[1]
A rocket blasts off with an upwards acceleration (not including gravity) of 19 m/sec/sec. How fast will it be going after 10 min?
[1]
A car is dropped into the water and falls for 2 min until it hits the bottom. The water creates a deceleration of 9 m/sec/sec. How fast will it be going when it hits the bottom?
[1]
A train speeds up to 9 cm/min in 4 min. What is its acceleration?
[1]
A boat is dropped into the water and falls for 2 min until it hits the bottom. The water creates a deceleration of 5 m/sec/sec. How fast will it be going when it hits the bottom?
[1]
A cat is dropped out of a plane and falls for 9 min until it hits the ground. How fast will it be going when it hits the ground?
[1]
A bike starts at a speed of 4 ft/sec and increases its speed to 13 ft/sec in 6 sec. What is its acceleration?
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A dog travels at 6 kilometers/second for 6 seconds then at 6 kilometers/second for 6 seconds. How far did it go?
[2]
A scooter traveling at 9 in/sec decelerates at 2 in/sec/sec. How long will it take to stop?
[1]
A scooter travels at 5 feet/second around a rectangle with one side of 3 feet and another side of 4 feet. How long will the scooter take to get around the rectangle?
[2]
A rabbit is dropped out of a plane and falls for 5 min until it hits water. The water creates a deceleration of 8 m/sec/sec and it takes another 8 min to sink to the bottom. How fast will it be going when it hits the bottom?
[2]
A bus accelerates at 5 ft/day/day for 9 day. How fast is it going?
[1]
Planet X has gravity that is one fourth the gravity on Earth. If a dog is dropped for 2 min on Planet X, how fast will it be going?
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What is 3cm in km?
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A cube accelerates at 5 m/sec/sec for 6 sec. How fast is it going?
[1]