7. A jeepney accelerates at (1.5 m/s³)t. A. If the velocity of the jeepney is 4.0 m/s at time t = 1.0 s, what is its velocity at t = 3.0 s? B. If the position of the jeepney at t = 1.0 s is 5.0 m, what is its position att = 3.0 s?

Physics for Scientists and Engineers: Foundations and Connections
1st Edition
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Author:Katz, Debora M.
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Chapter2: One Dimensional Motion
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Problem 67PQ: While strolling downtown on a Saturday Afternoon, you stumble across an old car show. As you are...
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What is the answer of no. 7?

I kept a constant velocity of 7.50 km/hr. If the dog started from zero
velocity, how much should the dog accelerate to catch up with the cat in exactly
one minute?
6. A canon ball was shot into the air vertically. At exactly 5.00 seconds later, the
canon ball fell to the ground.
A. If the canon ball was released 0.50 m from the ground, what was the initial
velocity of the canon ball?
B. If the canon ball was released at an initial velocity of 15.5 m/s (also from 0.50
m from the ground) how long would it take until the canon ball hit the ground?
D. Displacement and Velocity Involving Integration
7. A jeepney accelerates at (1.5 m/s³)t.
A. If the velocity of the jeepney is 4.0 m/s at time t = 1.0 s, what is its velocity at
t = 3.0 s?
B. If the position of the jeepney at t = 1.0 s is 5.0 m, what is its position at t =
3.0 s?
8. The acceleration of a taxi cab is a, = bt – ct². The taxi cab was not moving at
t = 0.
A. What is the position and velocity as functions of time?
B. What is the maximum velocity that the taxi cab will reach?
Transcribed Image Text:I kept a constant velocity of 7.50 km/hr. If the dog started from zero velocity, how much should the dog accelerate to catch up with the cat in exactly one minute? 6. A canon ball was shot into the air vertically. At exactly 5.00 seconds later, the canon ball fell to the ground. A. If the canon ball was released 0.50 m from the ground, what was the initial velocity of the canon ball? B. If the canon ball was released at an initial velocity of 15.5 m/s (also from 0.50 m from the ground) how long would it take until the canon ball hit the ground? D. Displacement and Velocity Involving Integration 7. A jeepney accelerates at (1.5 m/s³)t. A. If the velocity of the jeepney is 4.0 m/s at time t = 1.0 s, what is its velocity at t = 3.0 s? B. If the position of the jeepney at t = 1.0 s is 5.0 m, what is its position at t = 3.0 s? 8. The acceleration of a taxi cab is a, = bt – ct². The taxi cab was not moving at t = 0. A. What is the position and velocity as functions of time? B. What is the maximum velocity that the taxi cab will reach?
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