SOLUTION: 1.A long jumper at 20' angle and attains a maximum
height of 0.6 m. How far is her jump?
2. A car starts from rest with an acceleration of 8 m/s². After 30s, how fast is it goin
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Question 1196023: 1.A long jumper at 20' angle and attains a maximum
height of 0.6 m. How far is her jump?
2. A car starts from rest with an acceleration of 8 m/s². After 30s, how fast is it going?
3. A bag is dropped from cliff 50m high Disregarding air resistance, how long does it take it to reach ground?
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
1.A long jumper at 20' angle and attains a maximum height of 0.6 m. How far is her jump?
----------------
It's a parabola.
2. A car starts from rest with an acceleration of 8 m/s². After 30s, how fast is it going?
----
8*30 = 240 m/sec
=====================
3. A bag is dropped from cliff 50m high Disregarding air resistance, how long does it take it to reach ground?
----
s = at^2/2
50 = at^2/2
t^2 = 100/a ---- a is acceleration due to gravity.
Solve for t.
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