An astronaut standing on the Moon throws a stone vertically upwards. The stone leaves his hand at time $t = 0$. The line on Fig. 1.1 shows how the velocity $v$ of the stone varies with time $t$ until $t = 2.0\ \text{s}$. (a) After rising, the stone falls. The astronaut catches the stone at $t = 6.0\ \text{s}$. There is no air resistance on the Moon. (i) Complete Fig. 1.1 until $t = 6.0\ \text{s}$. (ii) State the value of $t$ when the stone is at its highest point.…

Physics 5054/21 — May/June 2012

Cambridge O-Level · Theory · worked solutions for every part, with the mark scheme

questions

marks

105

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Topics Forces · Energy, Work and Power · Electric Circuits · Kinematics · Pressure · Kinetic Particle Model of Matter · +14 more

Q1KinematicsForcesFree sample

An astronaut standing on the Moon throws a stone vertically upwards. The stone leaves his hand at time $t = 0$ . The line on Fig. 1.1 shows how the velocity $v$ of the stone varies with time $t$ until $t = 2.0\ \text{s}$ .

Fig. 1.1

(a)

After rising, the stone falls. The astronaut catches the stone at $t = 6.0\ \text{s}$ .
There is no air resistance on the Moon.

(i)

Complete Fig. 1.1 until $t = 6.0\ \text{s}$ .

(ii)

State the value of $t$ when the stone is at its highest point.

______

(b)

Calculate the acceleration of the stone between $t = 0$ and $t = 2.0\ \text{s}$ .

acceleration = ______

(c)

A stone is thrown vertically upwards on the Earth with the same initial velocity.
State two ways in which the velocity-time graph for this stone differs from Fig. 1.1.

______
______

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