Question

1.Starting at rest, the cart shown in the figure given alongside slides
frictionless to point P which is 4.5 meters below the top of the hill. What is
its speed at P? (take g=9.8m/sec)
a) 3.6 ms
b) 9.4 ms
c) Zero
none
2. Two metallic blocks P and Q of masses in ratio 2:1 are given same amount of heat. If both bodies show the same
rise in temperature, their specific heat capacities will be in the ratio?​

Answer 1

Answer:

Explanation:

(B)9.4 m s is the answer

Equate total energy at both points and we will get an equation as shown