Easy -1.8 This is a trivial recall question asking for the definition of a perfectly elastic collision (e=1). It requires no calculation, problem-solving, or application—just direct recall of a basic definition that students memorize early in the mechanics course.
18 J
34 J
2 Two particles are moving directly towards each other when they collide.
Given that the collision is perfectly elastic, state the value of the coefficient of restitution.
Circle your answer.
\(e = - 1\)
\(e = 0\)
\(e = \frac { 1 } { 2 }\)
\(e = 1\)
3 A stone of mass 0.2 kg is thrown vertically upwards with a speed of \(10 \mathrm {~m} \mathrm {~s} ^ { - 1 }\)
Find the initial kinetic energy of the stone.
Circle your answer. [0pt]
[1 mark]
1 J
5 J
10 J
18 J\\
34 J
2 Two particles are moving directly towards each other when they collide.\\
Given that the collision is perfectly elastic, state the value of the coefficient of restitution.
Circle your answer.\\
$e = - 1$\\
$e = 0$\\
$e = \frac { 1 } { 2 }$\\
$e = 1$
3 A stone of mass 0.2 kg is thrown vertically upwards with a speed of $10 \mathrm {~m} \mathrm {~s} ^ { - 1 }$\\
Find the initial kinetic energy of the stone.\\
Circle your answer.\\[0pt]
[1 mark]\\
1 J\\
5 J\\
10 J\\
\hfill \mbox{\textit{AQA Further AS Paper 2 Mechanics 2023 Q18 [1]}}