Answer the following questions for projectile motion on level ground assuming negligible air resistance (the initial angle being neither 0° nor 90°) (a) Is the velocity ever zero? (b) When is the velocity a minimum? A maximum? (c) Can the velocity ever be the same as the initial velocity at a time other than at t = 0 ? (d) Can the speed ever be the same as the initial speed at a time other than at t = 0 ?
Answer the following questions for projectile motion on level ground assuming negligible air resistance (the initial angle being neither 0° nor 90°) (a) Is the velocity ever zero? (b) When is the velocity a minimum? A maximum? (c) Can the velocity ever be the same as the initial velocity at a time other than at t = 0 ? (d) Can the speed ever be the same as the initial speed at a time other than at t = 0 ?
Answer the following questions for projectile motion on level ground assuming negligible air resistance (the initial angle being neither 0° nor 90°) (a) Is the velocity ever zero? (b) When is the velocity a minimum? A maximum? (c) Can the velocity ever be the same as the initial velocity at a time other than at
t
=
0
? (d) Can the speed ever be the same as the initial speed at a time other than at
t
=
0
?
ew it now.
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Identify the true statements.
2
Choose all answers that apply:
A
If an object is accelerating, it must be experiencing a nonzero ΣF
If an object is remaining at rest, it must be experiencing zero ΣỄ
If an object is moving, it must be experiencing a nonzero ΣỄ
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