Physics Past Questions and Answers

Question 4716:

A force of $0.6N$ acts on a body of mass $40kg$, initially at rest. What is the resulting acceleration?

A. $24m/s2$
B. $0.6m/s2$
C. $40m/s2$
D. $15m/s2$

Question 4717:

An object of mass $10kg$ is pulled over a rough surface by a $20N$ force. The object accelerates at a rate of $1.5m/s2$.
Determine the frictional force between the object and the surface.

A. $30N$
B. $20N$
C. $2N$
D. $5N$

Question 4718:

A body of mass $2kg$, moving with velocity $5m/s$ collides with stationary body of mass $0.5kg$ if the two bodies move together after impact.
Calculate their common velocity.

A. $10m/s2$
B. $4m/s2$
C. $2.5m/s$
D. $0.5m/s2$

Question 4719:

A body of mass $200g$ and specific heat capacity $0.4$ $J/g.K$ cools from $370C$ to $310<C>$
Calculate the quantity of heat released by the body.

A. $4800J$
B. $1200J$
C. $480J$
D. $202J$

Question 4720:

The length of mercury thread when it is at $0\circ C$, $1000C$ and unknown temperature XoC is $200mm$, $220mm$ and $270mm$ respectively. Determine the value of $X$.

A. $3500C$
B. $57\circ C$
C. $133\circ C$
D. $300\circ C$