Answer:
For Yanni, the speed of the ball is 15 m/s, and for the quarterback, the speed of the ball is 8 m/s.
Explanation:
Answer:
1.23 m/s
Explanation:
p=mv
57.2 = 46.5v
v= 57.2/46.5
v= 1.23
If you want to verify your answer, just insert the value of v in the equation.
Answer:
he covered 80km his displacement was 20km
Explanation:
displacement is the distance from the starting point so in this case its 20 (50-30) and total distance covered is how many kilometers he drove in total
The FIRST statement on the list is the definition of momentum, so that's the one that must be true.
Given:
Initial speed of the motorcycle (u) = 35 m/s
Final speed of the motorcycle (v) = 0 m/s (Complete Stop)
Maximum deceleration of the motorcycle (a) = -1.2 m/s²
Required Equation:
![\boxed{\bf{ v = u + at}}](https://tex.z-dn.net/?f=%20%5Cboxed%7B%5Cbf%7B%20v%20%3D%20u%20%2B%20at%7D%7D)
Answer:
By substituting values in the equation, we get:
![\rm \longrightarrow 0 = 35 + ( - 1.2)t \\ \\ \rm \longrightarrow 0 = 35 - 1.2t \\ \\ \rm \longrightarrow 35 - 1.2t = 0 \\ \\ \rm \longrightarrow 35- 35 - 1.2t = 0 - 35 \\ \\ \rm \longrightarrow - 1.2t = - 35 \\ \\ \rm \longrightarrow \dfrac{ - 1.2t}{ - 1.2} = \dfrac{ - 35}{ - 1.2} \\ \\ \rm \longrightarrow t = 29.167 \: s](https://tex.z-dn.net/?f=%20%5Crm%20%5Clongrightarrow%200%20%3D%2035%20%2B%20%28%20-%201.2%29t%20%5C%5C%20%20%5C%5C%20%20%5Crm%20%5Clongrightarrow%20%200%20%3D%2035%20-%201.2t%20%5C%5C%20%20%5C%5C%20%20%5Crm%20%20%5Clongrightarrow%2035%20-%201.2t%20%3D%200%20%5C%5C%20%20%5C%5C%20%20%5Crm%20%20%5Clongrightarrow%2035-%2035%20-%201.2t%20%3D%200%20-%2035%20%5C%5C%20%20%5C%5C%20%20%5Crm%20%20%5Clongrightarrow%20%20-%201.2t%20%3D%20%20-%2035%20%5C%5C%20%20%5C%5C%20%20%5Crm%20%5Clongrightarrow%20%20%5Cdfrac%7B%20-%201.2t%7D%7B%20-%201.2%7D%20%20%3D%20%20%5Cdfrac%7B%20-%2035%7D%7B%20-%201.2%7D%20%20%5C%5C%20%20%5C%5C%20%20%5Crm%20%5Clongrightarrow%20%20t%20%3D%2029.167%20%5C%3A%20s)
Time taken by motorcycle to come to a complete stop (t) = 29.167 s