1. If a cars speed increases from 18 m/s to 20 m/s in 15 seconds, its acceleration is how much:

2. What is the acceleration of a toy car that starts from rest & has a speed of 0.12 m/s after 0.1 seconds?

3. If an object moves at a constant speed and is accelerating, its ___ of travel must be changing:

A. Distance

B. Velocity

C. None

4. A soccerball rolls 12.6 meters in 4.5 seconds. Calculate the average speed.

5. A champion jumping frog can jump 2.5 meters every 4 seconds. What is the jumping frogs average speed?

6. An arctic tern can fly 85 km/h for every 24 hours straight. How far can it fly without landing?

Question

Mathematics

Itzel Moreno

Today, 00:06

1. If a cars speed increases from 18 m/s to 20 m/s in 15 seconds, its acceleration is how much:

2. What is the acceleration of a toy car that starts from rest & has a speed of 0.12 m/s after 0.1 seconds?

3. If an object moves at a constant speed and is accelerating, its ___ of travel must be changing:

A. Distance

B. Velocity

C. None

4. A soccerball rolls 12.6 meters in 4.5 seconds. Calculate the average speed.

5. A champion jumping frog can jump 2.5 meters every 4 seconds. What is the jumping frogs average speed?

6. An arctic tern can fly 85 km/h for every 24 hours straight. How far can it fly without landing?

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Answers (1)

Know the Answer?

Jace · Answer 1

Answer: Q1: 0.13m/s^2.

Q2: 1.2m/s^2

Q3: C

Q4: 2.8m/s

Q5: 0.63m/s

Q6: 2040km

Step-by-step explanation: acceleration a = (v-u) / t

Q1: a = (20-18) / 15

a = 0.13m/s^2

Q2: a = (0.12-0) / 0.1

a = 1.2m/s^2

Q3: None

Q4: V = distance/time

V = 12.6/4.5

V = 2.8m/s

Q5: v=2.5/4

v = 0.63m/s

Q6: distance d = v*t

d = 85*24

d = 2040km