1 A train travels 140 km in 2.5 hours. Calculate its speed?
2 A train moves from rest to a speed of 25 m/s in 20 seconds. What is its acceleration? *
3. A plane’s average speed traveling between two cities is 800 km/h. If the trip takes 2.5 hours, how far does the plane fly? *
4. A sailboat is traveling north at 10 km/h, relative to the water. The water is flowing north at 5 km/h. What is the velocity of the boat relative to an observer on the shore? *
5. Gio walked to a friend’s house. He walked 850 meters north, then realized he walked too far. He turned around and walked 350 meters south. The entire walk took him 25 seconds. What is his speed in meter per second? *
2 A train moves from rest to a speed of 25 m/s in 20 seconds. What is its acceleration? *
3. A plane’s average speed traveling between two cities is 800 km/h. If the trip takes 2.5 hours, how far does the plane fly? *
4. A sailboat is traveling north at 10 km/h, relative to the water. The water is flowing north at 5 km/h. What is the velocity of the boat relative to an observer on the shore? *
5. Gio walked to a friend’s house. He walked 850 meters north, then realized he walked too far. He turned around and walked 350 meters south. The entire walk took him 25 seconds. What is his speed in meter per second? *
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1 A train travels 140 km in 2.5 hours. Calculate its speed?
s = d / t
= 140 km / 2.5 hr
= 56 km/hr ( Answer )
2 A train moves from rest to a speed of 25 m/s in 20 seconds. What is its acceleration? *
a = Vf - Vi / t
= 25 m/s - 0 m/s / 20 s
= 1.25 m/s² ( answer )
3. A plane’s average speed traveling between two cities is 800 km/h. If the trip takes 2.5 hours, how far does the plane fly? *
d = s × t
= 800 km/h × 2.5 hr
= 2000 km ( Answer )
4. A sailboat is traveling north at 10 km/h, relative to the water. The water is flowing north at 5 km/h. What is the velocity of the boat relative to an observer on the shore? *
10 km/h + 5 km/h = 15 km/hr North ( answer )
5. Gio walked to a friend’s house. He walked 850 meters north, then realized he walked too far. He turned around and walked 350 meters south. The entire walk took him 25 seconds. What is his speed in meter per second? *
s = d / t
= 850 m + 350 m / 25 s
= 1200 m / 25 s
= 48 m/s ( Answer )
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